3973:
the Sun. The mean anomaly of the Sun is a smooth function, increasing by about 10° when increasing inex by 1 in a saros series and decreasing by about 20° when increasing saros index by 1 in an inex series. This means it is almost constant when increasing inex by 1 and saros index by 2 (the "Unidos" interval of 65 years). The above graph showing the time of year of eclipses basically shows the solar anomaly, since the perihelion moves by only one day per century in the Julian calendar, or 1.7 days per century in the
Gregorian calendar. The mean anomaly of the Moon is more complicated. If we look at the eclipses whose saros index is divisible by 3, then the mean anomaly is a smooth function of inex and saros values. Contours run at an angle, so that mean anomaly is fairly constant when inex and saros values increase together at a ratio of around 21:24. The function varies slowly, changing by only 7.4° when changing the saros index by 3 at a constant inex value. A similar smooth function obtains for eclipses with saros modulo 3 equal to 1, but shifted by about 120°, and for saros modulo 3 equal to 2, shifted by 120° the other way.
3145:
as well as alternate between total and annular. Hence there is usually a maximum of one total or annular eclipse each in a given lunar year. (However, in the middle of an eight-semester series the hemispheres switch, and there is a switch during the series between whether the odd ones or the even ones are total.) It is possible to have two eclipses separated by a semester and a third eclipse one month before or after, so that two of the three are separated by seven months, but this only happens during certain centuries (see graph of inex versus date below). Because it is close to a half integer of anomalistic, draconic months, and tropical years, each lunar eclipse will usually alternate between edges of Earth's shadow each semester, as well as alternate between Lunar eclipses with the moon’s penumbral and umbral shadow difference less or greater than 1. Hence there is usually a maximum of one Lunar eclipse with Moon’s penumbral and umbral shadow difference less or greater than 1 each in a given lunar year.
9066:
4024:
from apogee toward perigee. The time is also delayed because of the eccentricity of the Earth's orbit. Eclipses occur about four hours later in April and four hours earlier in
October. This means that the delay varies from eclipse to eclipse in a series. The delay is the sum of two sine-like functions, one based on the time in the anomalistic year and one on the time in the anomalistic month. The periods of these two waves depends on how close the nominal interval between two eclipses in the series is to a whole number of anomalistic years and anomalistic months. In series like the "Immobilis" or the "Accuratissima", which are near whole numbers of both, the delay varies very slowly, so the interval is quite constant. In series like the octon, the Moon's anomaly changes considerably at least twice every three intervals, so the intervals vary considerably.
6542:
4282:
shorter. The eccentricity of the Earth's orbit is presently decreasing at about one percent per 300 years, thus decreasing the effect of the sun's anomaly. Formulae for the
Delaunay arguments show that the lengthening of the synodic month means that eclipses tend to occur later than they would otherwise proportionally to the square of the time separation from now, by about 0.32 hours per millennium squared. The other Delaunay arguments (mean anomaly of the Moon and of the sun and the argument of latitude) will all be increased because of this, but on the other hand the Delaunay arguments are also affected by the fact that the lengths of the draconic month and anomalistic month and year are changing. The net results are:
7322:
5542:
4003:
position moves eastward by more than what it does for that change of day in year at other times. This means the Sun's position relative to the node doesn't change as much as for saros series giving eclipses at other times of the year. In the first half of the 21st century, solar saros series showing this slow rate of change of gamma include 122 (giving an eclipse on
January 6, 2019), 132 (January 5, 2038), 141 (January 15, 2010), and 151 (January 4, 2011). Sometimes this phenomenon leads to a saros series giving a large number of central eclipses, for exammple solar saros 128 gave 20 eclipses with |γ|<0.75 between 1615 and 1958, whereas series 135 gave only nine, between 1872 and 2016.
3450:, for example, all produce mainly total eclipses when they are central, because the moon is close to perigee. In fact, at the solar eclipse of October 17, 1781, which was in saros series 130 and inex 50, was both very central and at perigee. But this repetition is not perfect. In about 2460 years, the above-mentioned series, 130, 133... (equivalent to 1 modulo 3) will give central solar eclipses that are annular, near apogee. In about 820 years central lunar eclipses, but not solar ones, will be near perigee every three saros series, and in around 1640 years the solar saros series with index equivalent to 2 modulo 3 will give central eclipses near perigee.
4028:
of draconic months) and longitude (because a period of three saros is always within a couple hours of being 19755.96 days long, which would change the longitude by about 13° eastward). If instead we increase the saros index at a constant inex index, the intervals are quite variable because the number of anomalistic months or years is not very close to a whole number. This means that although the latitude will be similar (but changing sign), the longitude change can vary by more than 180°. Moving by six inex (a de la Hire cycle) preserves the latitude fairly well but the longitude change is very variable because of the variation of the solar anomaly.
3785:
Accuratissima will become exactly equal to a whole number of days or weeks in around AD 2100, meaning that an eclipse around AD 1200 will be repeated at the same time of day on the same day of the week 1841 years later. The
Accuratissima is also useful for calculating the magnitude and character of eclipses. An Accuratissima plus a Tritrix plus a saros makes an eclipse cycle 1.8 days short of 2000 Julian years, or 13.2 days longer than 2000 Gregorain years. It is only half a day less than a whole number of anomalistic months, whereas the Accuratisssima is only 0.2 days short of a whole number of anomalistic months.
3977:
3559:
of semester and
Hipparchic cycle.) This means that at the time of the second eclipse same side of the earth will be facing the sun as at the first eclipse (but the value of gamma will be different). By comparing his own eclipse observations with Babylonian records from 345 years earlier, Hipparchus could verify the accuracy of the various periods that the Chaldeans used. Ptolemy points out that dividing it by 17 still gives a whole number of synodic months (251) and anomalistic months (269), but this is not an eclipse interval because it is not near a whole or half integer number of draconic months.
8730:
3647:
9637:
4015:
460:
occur at every full moon, a solar eclipse every new moon, and all solar eclipses would be the same type. In fact the distances between the Earth and Moon and that of the Earth and the Sun vary because both the Earth and the Moon have elliptic orbits. Also, both the orbits are not on the same plane. The Moon's orbit is inclined about 5.14° to Earth's orbit around the Sun. So the Moon's orbit crosses the ecliptic at two points or nodes. If a New Moon takes place within about 17° of a node, then a solar eclipse will be visible from some location on Earth.
58:
456:" of about 14 lunations in the timings and appearances of full (and new) Moons. The Moon moves faster when it is closer to the Earth (near perigee) and slower when it is near apogee (furthest distance), thus periodically changing the timing of syzygies by up to 14 hours either side (relative to their mean timing), and causing the apparent lunar angular diameter to increase or decrease by about 6%. An eclipse cycle must comprise close to an integer number of anomalistic months in order to perform well in predicting eclipses.
3417:, can produce at most two solar eclipses (both partial) and at most two lunar eclipses (both penumbral). The Callipic cycle is 20 octons, and series of octons often produce only 21 eclipses, so only the first and the last of such a series are separated by a Callipic cycle. Most eclipses are not followed by another eclipse 940 lunations later, but rather 939 lunations later (two inex and a saros), which comes near an integer number of draconic months, producing similar eclipses. This is called a Short Callippic Period.
3258:
3812:
186:
3874:
3899:
4032:
10209:
8268:
3921:, and in September/October further west than its mean longitude, the absolute values of gamma in the first and fourth eclipse are decreased, while the absolute values in the second and third are increased. The result is that all four gamma values are small enough to lead to total lunar eclipses. The phenomenon of the Moon "catching up" with the Sun (or the point opposite the Sun), which is usually not at its mean longitude, has been called a "stern chase".
3866:
3929:
4007:
3821:
8257:
3986:
perigee at the time of the eclipse, and therefore relatively large, favoring total eclipses. In the red area, the Moon is generally further from the Earth, and the eclipses are annular. We can also see the effect of the Sun's anomaly. Eclipses in July, when the Sun is further from the Earth, are more likely to be total, so the blue area extends over a greater range of inex index than for eclipses in
January.
8245:
3968:, which is like a linear function of inex and saros but with a deviation that grows quadratically with distance from the reference time, amounting to about 19 minutes at a distance of 1000 years. The mean argument of latitude, F, is equivalent to 0° or 180° (depending on whether the saros index is even or odd) along the smooth curve going through the centre of the band of eclipses, where
370:(how far the Moon is north or south of the ecliptic during an eclipse) changes monotonically throughout any single saros series. The change in gamma is larger when Earth is near its aphelion (June to July) than when it is near perihelion (December to January). When the Earth is near its average distance (March to April or September to October), the change in gamma is average.
3265:
year. This means that the clusters slowly move forward to later dates. In a saros series, every 18 years the eclipse moves to the next later cluster. After 631 years (35 saros) it comes back to the original cluster, which by then has moved, in the Julian calendar, to a date about 13 or 14 days later, or about 18 days later in the
Gregorian calendar.
526:
the node, and the eclipse year when the Sun returns to the node. These three 2-way relations are not independent (i.e. both the synodic month and eclipse year are dependent on the apparent motion of the Sun, both the draconic month and eclipse year are dependent on the motion of the nodes), and indeed the eclipse year can be described as the
3862:
the diagram) occur after the Moon goes through its node (the beginning and end of a draconic month), while the later eclipses (in the lower part) occur before the Moon goes through its node. Every 18 years, the eclipse occurs on average about half a degree further west with respect to the node, but the progression is not uniform.
362:. In other words, a particular eclipse will be repeated only if the Moon will complete roughly an integer number of synodic, draconic, and anomalistic periods and the Earth-Sun-Moon geometry will be nearly identical. The Moon will be at the same node and the same distance from the Earth. This happens after the period called the
3964:
times when the inex value goes up by 1, and 358 times when the saros value goes up by 1. It is thus equivalent to 0°, by definition, at each combination of solar saros index and inex index, because solar eclipses occur when the elongation is zero. From D one can find the actual elapsed time from some reference time such as
424:. In other words, a particular eclipse will be repeated only if the Moon will complete roughly an integer number of synodic, draconic, and anomalistic periods (223, 242, and 239) and the Earth-Sun-Moon geometry will be nearly identical to that eclipse. The Moon will be at the same node and the same distance from the Earth.
3924:
Inex series move slowly through the year, each eclipse occurring about 20 days earlier in the year, 29 years later. This means that over a period of 18.2 inex cycles (526 years) the date moves around the whole year. But because the perihelion of Earth's orbit is slowly moving as well, the inex series
3894:
Lunar eclipses can also be plotted in a similar diagram, this diagram covering 1000 AD to 2500 AD. The yellow diagonal band represents all the eclipses from 1900 to 2100. This graph immediately illuminates that this 1900–2100 period contains an above average number of total lunar eclipses compared to
3885:
Saros and inex numbers are also defined for lunar eclipses. A solar eclipse of given saros and inex series will be preceded a fortnight earlier by a lunar eclipse whose saros number is 26 lower and whose inex number is 18 higher, or it will be followed a fortnight later by a lunar eclipse whose saros
3881:
Saros and inex number can be calculated for an eclipse near a given date. One can also find the approximate date of solar eclipses at distant dates by first determining one in an inex series such as series 50. This can be done by adding or subtracting some multiple of 28.9450 Gregorian years from the
3567:
An eclipse cycle where the number of solar years (365.371) closely matches (by chance) the number of days in 1 solar year (365.242). Lasting 365 years 4.5 months or 4519 lunations. It is the eighth convergent in the continued fractions development of the ratio between the eclipse year and the synodic
3543:
An eclipse cycle where the number of eclipse years (354.5) closely matches (by chance) the number of days in a lunar year (354.371). It equals approximately 336 years 5 months 6 days or 4161 lunations. It is a convergent in the continued fractions development of the ratio between the eclipse year and
3525:
An eclipse cycle equal to 299 years and about ten and a half months, always occurring on the same node. Peter
Macdonald found that a series of eclipses of especially long duration visible from Britain occurs with this interval in the period AD 1 to 3000. A Macdonald series has around ten eclipses and
3355:
A triple saros, with the advantage that it has nearly an integer number of days, so the next eclipse will be visible at locations near the eclipse that occurred one exeligmos earlier, in contrast to the saros, in which the eclipse occurs about 8 hours later in the day or about 120° to the west of the
463:
At an average angular velocity of 0.99° per day, the Sun takes 34.5 days to cross the 34° wide eclipse zone centered on each node. Because the Moon's orbit with respect to the Sun has a mean duration of 29.53 days, there will always be one and possibly two solar eclipses during each 34.5-day interval
447:
Another thing to consider is that the motion of the Moon is not a perfect circle. Its orbit is distinctly elliptic, so the lunar distance from Earth varies throughout the lunar cycle. This varying distance changes the apparent diameter of the Moon, and therefore influences the chances, duration, and
303:
will experience a total number of 11,898 solar eclipses between 2000 BCE and 3000 CE. A particular solar eclipse will be repeated approximately after every 18 years 11 days and 8 hours (6,585.32 days) of period, but not in the same geographical region. A particular geographical region will experience
4333:
The fact that the argument of latitude is decreased explains why one sees a curvature in the "Panorama" above. Central eclipses in the past and in the future are higher in the graph (lower inex number) than what one would expect from a linear extrapolation. This is because the ratio of the length of
4272:
In terms of
Delaunay arguments, the Sun is biggest at ascending-node solar eclipses and smallest at descending-node solar eclipses around when l'+D=F (modulo 360°), such as June, 2010. It is smallest at descending-node solar eclipses and biggest at ascending-node solar eclipses 9.3 years later, such
4035:
Cosine of mean anomaly of moon at solar eclipses, 2001 through 2040. The curves connect eclipses that are 12 synodic months apart, but do not represent the anomaly between the eclipses. In each such series of four eclipses, the mean anomaly follows a sine wave. The moon is largest when the cosine of
4023:
The time interval between two eclipses in an eclipse cycle is variable. The time of an eclipse can be advanced or delayed by up to ten hours due to the eccentricity of the Moon's orbit – the eclipse will be early when the Moon is going from perigee to apogee, and late when it is going
3815:
Solar eclipses around the present time. Series of semesters, heptons, and octons are easily visible. Note that the hepton series tend to remain total or annular, because the interval is near a whole number of anomalistic months, whereas in the octon series the type of eclipse changes over a cycle of
3766:
Equals 58 inex plus 7 saros (one saros more than a Heliotrope), which is 95 Metonic cycles, or 95 saros plus 95 lunar years, or 100 saros plus 25 lunations, or a bit over 1805 years, always occurring on the same node, and revealing the Metonic cycle's mismatch from 19 years as 95 repeats accumulates
3170:
7 eclipse seasons, and one of the less noteworthy eclipse cycles. Each eclipse in a hepton is followed by an eclipse 3 saros series before, always occurring at alternating nodes. It is equal to 41 synodic months. The interval is nearly a whole number of weeks (172.96), so each eclipse is followed by
3144:
Half a lunar year. Eclipses will repeat exactly one semester apart at alternating nodes in a cycle that lasts for 8 or 9 eclipses. Because it is close to a half integer of anomalistic, draconic months, and tropical years, each solar eclipse will (usually) alternate between hemispheres each semester,
459:
If the Earth had a perfectly circular orbit centered around the Sun, and the Moon's orbit was also perfectly circular and centered around the Earth, and both orbits were coplanar (on the same plane) with each other, then two eclipses would happen every lunar month (29.53 days). A lunar eclipse would
264:
If a solar eclipse occurs at one new moon, which must be close to a node, then at the next full moon the Moon is already more than a day past its opposite node, and may or may not miss the Earth's shadow. By the next new moon it is even further ahead of the node, so it is less likely that there will
4040:
Both the angular size of the Moon in the sky at eclipses at the ascending node and the size of the Sun at those eclipses vary in a sort of sine wave. The sizes at the descending node vary in the same way, but 180° out of phase. The Moon is large at an ascending-node eclipse when its perigee is near
4027:
The "Panorama" can also be related to where on the Earth the shadow of the Moon falls at the central time of the eclipse. If this "maximum eclipse" for a given eclipse is at a particular location, eclipses three saros later will be at a similar latitude (because the saros is close to a whole number
3972:
is near zero (around inex series 50 at present). F decreases as we go away from this curve towards higher inex series, and increases on the other side, by about 0.5° per inex series. When the inex value is too far from the centre, the eclipses disappear because the Moon is too far north or south of
3963:
These four arguments are basically linear functions of time but with slowly varying higher-order terms. A diagram of inex and saros indices such as the "Panorama" shown above is like a map, and we can consider the values of the Delaunay arguments on it. The mean elongation, D, goes through 360° 223
3936:
One can skew the graph of inex versus saros for solar or lunar eclipses so that the x axis shows the time of year. (An eclipse which is two saros series and one inex series later than another will be only 1.8 days later in the year in the Gregorian calendar.) This shows the 586-year oscillations as
3784:
Equals 58 inex plus 9 saros (one saros more than an Immobilis), therefore 1841 years 1 month or 22771 lunations, which is presently about an hour more than a whole number of weeks, allowing eclipses to occur the same day of the week. Because of the slowing of the Earth's rotation, the length of the
3558:
constructed it to closely match an integer number of synodic and anomalistic months, years (345), and days. Because of it being close to a whole number of both anomalistic months and anomalistic years, its length is always within about an hour of 126007 days and half an hour. (See graphs lower down
3425:
A triple inex, with the advantage that it has nearly an integer number of anomalistic months, which makes the circumstances between two eclipses one Triad apart very similar, but at the opposite latitude. Almost exactly 87 calendar years minus 2 months. The triad means that every third saros series
3264:
of dates of solar eclipses in 21st century. The dates form 35 clusters. Each cluster contains eclipses separated by Metonic cycles of 19 years. Each series contains four or five eclipses, and 46 or 65 or 84 years after the first one another series starts about a day and a half later in the (Julian)
3215:
An eclipse "cycle" of at most 3 eclipses, but in fact meant as a period separating a pair of similar eclipses with opposite gamma values. Adding 1 lunation (for 112 synodic months) gives another period with the same property, the other half of a saros. The two surround a sar (half-saros). Named for
3161:
6 eclipse seasons, and a fairly short eclipse cycle. Each eclipse in a hexon series (except the last) is followed by an eclipse whose saros series number is 8 lower, always occurring at the same node. It is equal to 35 synodic months, 1 less than 3 lunar years (36 synodic months). At any given time
676:
5.868831091 = Quotients Convergents SM/half EY decimal SM/full EY named cycle 5; 5/1 = 5 pentalunex 1 6/1 = 6 12/1 semester 6 41/7 = 5.857142857 hepton 1 47/8 =
4281:
The lengths of the synodic, draconic, and anomalistic months, the length of the day, and the length of the anomalistic year are all slowly changing. The synodic and draconic months, the day, and the anomalistic year (at least at present) are getting longer, whereas the anomalistic month is getting
3989:
The waviness seen in the graph is also due to the Sun's anomaly. In April the Sun is further east than if its longitude progressed evenly, and in October it is further west, and this means that in April the Moon catches up with the Sun relatively late, and in October relatively early. This in turn
3980:
Time of year for solar eclipses between saros 90 and saros 210, but showing only the saros series whose index is divisible by 3. The time of year is related to the anomaly of the Sun. Two of the four eclipses of the year 2000 are indicated, with a line between them which shows (almost exactly) the
3861:
which progresses smoothly from partial eclipses into total or annular eclipses and back into partials. Each graph row represents an inex series. Since a saros, of 223 synodic months, is slightly less than a whole number of draconic months, the early eclipses in a saros series (in the upper part of
3824:
Eclipses between AD 1600 and 2400. One can fairly easily see six of the eclipse cycles mentioned in this article. During some periods there are (non-consecutive) eclipses seven lunar months apart (a change of 69 in inex index). The two eclipses are seen both near the Arctic Circle or both near the
3801:
Equals 110 inex plus 7 saros, therefore 3310 years and about 2 months, always occurring on the same node. It is useful for calculating the timing and magnitudes of eclipses as they are approximately an integer number of draconic and anomalistic months and weeks apart (172,715.97 weeks), leading to
3687:
cause the period for occurrence of tetrads to be variable, and it is currently about 565 years; see Meeus III (2004) for a detailed discussion. The Tetradia period also shows up in the distance between eras in which there are pairs of (non-consecutive) eclipses seven months apart, or eras in which
3504:
Equals 3 inex plus 6 saros, lasting 195 Julian years and 4 days or 2412 lunations, equaling 201 lunar years, always occurring at alternating nodes. Just two days over a whole number of anomalistic years and near a whole number of anomalistic months, which means the interval between two eclipses is
3478:
Equals 3 inex plus 3 saros, which is 140 years 11 months or 1743 lunations, always occurring on alternating nodes. The tritrix is very close to a whole number of anomalistic months ((1867.9970) and close to a whole number of anomalistic years, which means the interval between two eclipses is quite
525:
Note that there are three main moving points: the Sun, the Moon, and the (ascending) node; and that there are three main periods, when each of the three possible pairs of moving points meet one another: the synodic month when the Moon returns to the Sun, the draconic month when the Moon returns to
3985:
The upshot is that the properties vary slowly over the diagram in any of the three sets of saros series. The accompanying graph shows just the saros series that have saros index modulo 3 equal to zero. The blue areas are where the mean anomaly of the Moon is near 0°, meaning that the Moon is near
4002:
Eclipses that occur when the earth is near perihelion (sun anomaly near zero) are in saros series in which the gamma value changes little every 18.03 years. The reason for this is that from one eclipse to the next in the saros series, the day in the year advances by about 11 days, but the Sun's
3388:
by only 1.3 days (1.8 days over 65 average Gregorian years). Name suggested by Karl Palmen in that 2 saros are added over an inex. A period of three Unidos (195 years, a "Trihex") is quite close to both a whole number of anomalistic years and a whole number of anomalistic months, which means the
3318:
Very convenient in the classification of eclipse cycles. One inex after an eclipse, another eclipse takes place at the opposite latitude. Inex series, after a sputtering beginning, go on for many thousands of years giving eclipses every 29 years minus 20 days, or 21 days if the last year has 366
3252:
but not given this name), and one of the best for predicting eclipses, in which 223 synodic months equal 242 draconic months with an error of only 51 minutes. It is also very close to 239 anomalistic months, which makes the circumstances between two eclipses one saros apart very similar. Being a
711:
The number of days given is the average. The actual number of days and fractions of days between two eclipses varies because of the variation in the speed of the Moon and of the Sun in the sky. The variation is less if the number of anomalistic months is near a whole number, and if the number of
4317:
The fact that the day is getting longer means there are more revolutions of the Earth since some point in the past than what one might calculate from the time and date, and fewer from now to some future time. This effect means eclipses occur earlier in the day or calendar, going in the opposite
3342:
Julian years. The inex cycle is the cycle that produces the highest number of eclipses while it lasts. Inex series 30 first produced a solar eclipse in saros series -245 (in 9435 BC), has been producing eclipses every 29 years since saros series -197 (in 8045 BC), and will continue long past AD
3945:
The properties of eclipses, such as the timing, the distance or size of the Moon and Sun, or the distance the Moon passes north or south of the line between the Sun and the Earth, depend on the details of the orbits of the Moon and the Earth. There exist formulae for calculating the longitude,
157:
Therefore, at most new moons, Earth passes too far north or south of the lunar shadow, and at most full moons, the Moon misses Earth's shadow. Also, at most solar eclipses, the apparent angular diameter of the Moon is insufficient to fully occlude the solar disc, unless the Moon is around its
3994:
occurs too far to the east of the node, but more eclipses occur at high inex values in April because syzygy is not so far west of the node. The opposite applies to October. It also means that in April ascending-node solar eclipses will cast their shadow further north (such as the
3882:
solar eclipse of 10 May, 2013, or 28.9444 Julian years from the Julian date of 27 April, 2013. Once such an eclipse has been found, others around the same time can be found using the short cycles. For lunar eclipses, the anchor dates May 4, 2004 or Julian April 21 may be used.
3253:
third of a day more than a whole number of days, each succeeding eclipse is centered about 120° further west over the Earth. If the Earth's orbit around the sun were circular, the saros cycle would be very close to a periodic orbit that would repeat exactly every 223 months.ὤ
4818:
4266:
3593:
The shortest cycle that gives eclipses on the same date (more or less) in both the Gregorian and in a 12-month lunar calendar, because it is almost exactly a whole number of Gregorian years (391.00029) as well as being exactly 403 12-month lunar years. Discovered by
3704:
are all similar, being equal to 52 inex periods plus up to two triads and various numbers of saros periods. This means they all have a near-whole number of anomalistic months. They range from 1505 to 1841 years, and each series lasts for many thousands of years.
3568:
month, giving a series of eclipses one square year apart a life expectancy of thousands of years. Many eclipses of our day belong to "square year" series or selebit series that have been going for over 13,000 years, and many will continue for over 13,000 years.
4140:
3229:
will be followed by a very central total lunar eclipse. A solar eclipse where the Moon's penumbra just barely grazes the southern limb of Earth will be followed half a saros later by a lunar eclipse where the Moon just grazes the southern limb of the Earth's
312:
For two solar eclipses to be almost identical, the geometric alignment of the Earth, Moon and Sun, as well as some parameters of the lunar orbit should be the same. The following parameters and criteria must be repeated for the repetition of a solar eclipse:
432:
series. The change in gamma is larger when Earth is near its aphelion (June to July) than when it is near perihelion (December to January). When the Earth is near its average distance (March to April or September to October), the change in gamma is average.
4296:
As an example, from the solar eclipse of April, 1688 BC, to that of April, AD 1623, is 110 inex plus 7 saros (equivalent to a "Palaea-Horologia" plus a "tritrix", 3310.09 Julian years). According to the table above, the Delaunay arguments should change by:
4158:
eclipses actually occur every three years on average, because there are also the ones at the descending node that occur in between the ones at the ascending node. At lunar eclipses the size of the Moon is 180° out of phase with its size at solar eclipses.
3990:
means that the argument of latitude at the actual time of the eclipse will be raised higher in April and lowered in October. Eclipses (either partial or not) with low inex index (near the upper edge in the "Panorama" graph) fail to occur in April because
3757:
Equals 58 inex plus 6 saros, one saros more than a Proxima, therefore about 1787 years. Useful for calculating the longitudinal positions of the central lines of eclipses on Earth's surface near an integer number of years (1786.954 Julian years, 1786.991
3191:
of the Metonic cycle, and a fairly decent short eclipse cycle, but poor in anomalistic returns. Each octon in a series is 2 saros apart, always occurring at the same node. It is equal to 47 synodic months. At any given time there are eight octon series
3775:
Equals 58 inex plus 8 saros (one saros more than a Megalosaros), which is exactly 1879 lunar years. Always occurs on the same node. Very close to a whole number of anomalistic months, although 43 inex minus 5 saros (14279 months, 1154.5 years) is even
3495:
in his Tabularum Astronomicarum in 1687. It equals 6 inex periods, which is 173 years and around 8 months, or 2148 lunations, equaling 179 lunar years, always occurring on the same node at nearly an integer number of anomalistic months, as it equals 2
378:
For the repetition of a lunar eclipse, the geometric alignment of the Moon, Earth and Sun, as well as some parameters of the lunar orbit should be repeated. The following parameters and criteria must be repeated for the repetition of a lunar eclipse:
3290:
days. It is also 5 "octon" periods and close to 20 eclipse years, so it yields a short series of four or five eclipses on the same calendar date or on two calendar dates. It is equivalent to 110 "hollow months" of 29 days and 125 "full months" of 30
3085:
there will be another eclipse: the Sun and Moon will have moved about 15° with respect to the nodes (the Moon being opposite to where it was the previous time), but the luminaries may still be within bounds to make an eclipse. For example, penumbral
3849:
When this is greater than 1, the integer part gives the year AD, but when it is negative the year BC is obtained by taking the integer part and adding 2. For instance, the eclipse in saros series 0 and inex series 0 was in the middle of 2884 BC.
642:
Since there may be an eclipse every half draconic month, we need to find approximations for the number of half draconic months per synodic month: so the target ratio to approximate is: SM / (DM/2) = 29.530588853 / (27.212220817/2) = 2.170391682
3748:
Equals 58 inex plus 5 saros, therefore a bit less than 1769 years, always occurring at the same node and toward an integer number of draconic and anomalistic months and weeks, making the circumstances of each eclipse a proxima apart similar in
3696:
Equals 12 "Short Callippic Periods" (each a month shorter than a Callipic cycle), or 12 Callippic cycles minus 1 lunar year, so therefore a bit over 911 years or 11268 lunations, which is 939 lunar years. First mentioned by Alexander Pogo in
3909:(see above) are more common at present than at other periods. Tetrads occur when four lunar eclipses occur at four lunar inex numbers, decreseing by 8 (that is, a semester apart), which are in the range giving fairly central eclipses (small
3299:
Equal to a whole number of weeks plus a hundredth of a day, so consecutive eclipses of the cycle are usually on the same day of the week. Each eclipse in this period is a member of a preceding saros series, always occurring on alternating
3917:), the inex numbers were 52, 44, 36, and 28, and the eclipses occurred in April and late September-early October. Normally the absolute value of gamma decreases and then increases, but because in April the Sun is further east than its
600:
4570:
2.170391682 = 2 + 0.170391682 ; 1/0.170391682 = 5 + 0.868831085... ; 1/0.868831085... = 1 +5097171...6237575... ; etc. ; Evaluating this 4th continued fraction: 1/6 + 1 = 7/6; 6/7 + 5 = 41/7 ; 7/41 + 2 =
3526:
lasts about 3000 years. All or most are on the same day of the week, since the interval is only about an hour less than a whole number of weeks and the length is fairly constant becauses the anomaly of the moon is almost constant.
3678:
found a period of 586 years. This happens to be an eclipse cycle; see Meeus (1997). The phenomenon is related to the elliptical orbit of the Earth, as explained below. Recently Tudor Hughes explained that secular changes in the
3102:, these values are different going from quarter moon to quarter moon. The shortest lunar fortnight between first and last quarter moons lasts only about 13 days and 12 hours, while the longest lasts about 16 days and 2 hours.)
4018:
Length of Hipparchic intervals ending in 2001-2050 on the same scale as above. The interval is quite constant because it is close to a whole number of anomalistic months (4573.002) and to a whole number of anomalistic years
653:
5 11/5 = 2.2 pentalunex 1 13/6 = 2.166666667 semester 6 89/41 = 2.170731707 hepton 1 102/47 = 2.170212766 octon 1 191/88 = 2.170454545
3576:
Known for returning toward the same day of the week and Gregorian calendar date, as approximately an integer number of years, months, and weeks, are achieved, usually moving only a quarter day later in the Gregorian
3534:
The seventh convergent in the continued fractions development between the ratio of the eclipse year and synodic month, if this ratio is approximated as between 2.17039173 and 2.17039179. Discussed by James Utting in
272:
later the new moon will fall close to the opposite node. In that time (half an eclipse year) the Sun will have moved to the opposite node too, so the circumstances will again be suitable for one or more eclipses.
4334:
a synodic month to the length of a draconic month is getting smaller. Although both are getting longer, the draconic month is doing so more quickly because the rate at which the node moves west is decreasing.
3458:
Named after Karl Palmen in that a saros is subtracted from 4 inex. Each eclipse is followed by an eclipse 4 saros series later, always occurring at the same node. It equals 97 years 9 months or 1209 lunations.
3119:
Similarly, two events one synodic month apart have the Sun and Moon at two positions on either side of the node, 29° apart: both may cause a partial solar eclipse. For a lunar eclipse, it is a penumbral lunar
3728:
Equals 55 inex plus 4 saros, one saros more than a Palaea-Horologia, therefore over 1664 years, near an integer number of anomalistic months, therefore having similar properties, but at the opposite latitude.
4313:
Note that in this example, in terms of anomaly (position with respect to perigee) the moon returns to within 1% of an orbit (about 3.4°), rather than 3.2% as predicted using today's values of month lengths.
3224:
Includes an odd number of fortnights (223). As a result, eclipses alternate between lunar and solar with each cycle, occurring at the same node and with similar characteristics. A solar eclipse with small
3202:
Includes a half draconic month, so occurs at alternating nodes and alternates between hemispheres. Each consecutive eclipse is a member of preceding saros series from the one before. Equal to nearly ten
4168:
632:: the numerators and denominators then give the multiples of the two periods – draconic and synodic months – that (approximately) span the same amount of time, representing an eclipse cycle.
4322:. It cannot be calculated exactly but amounts to around 50 minutes per millennium squared. In our example above, this means that although the eclipse in 1688 BC was centred on March 16 at 00:15:31 in
4162:
The Sun is large at an ascending-node eclipse when its perigee (the direction toward the Sun when it is closest to the Earth) is near the ascending node, so the period for the size of the Sun is
3720:
Equals 55 inex plus 3 saros, which is over 1646 years. Useful for calculating the timing of eclipses. Close to a whole number of anomalistic months. A series lasts tens of thousands of years.
3098:. The shortest lunar fortnight between a new moon and a full moon lasts only about 13 days and 21.5 hours, while the longest such lunar fortnight lasts about 15 days and 14.5 hours. (Due to
464:
when the Sun passes through the nodal eclipse zones. These time periods are called eclipse seasons. Either two or three eclipses happen each eclipse season. During the eclipse season, the
4047:
27:
3712:
Equals 52 inex, therefore 1505 years and between 1 and 2 months. Eclipses in this period occur at a similar distance as nearly an integer number of anomalistic months are achieved.
3308:
This eclipse cycle is just over 36 tzolk'ins, lasting 317 lunations. Each eclipse in this period is followed by an eclipse 4 saros series' later, always occurring on the same node.
708:
Meeus (1997) Ch.9. More details are given in the comments below, and several notable cycles have their own pages. Many other cycles have been noted, some of which have been named.
3946:
latitude, and distance of the Moon and of the Sun using sine and cosine series. The arguments of the sine and cosine functions depend on only four values, the Delaunay arguments:
3688:
there are more pairs of eclipses one month apart, or eras in which there are saros series in which gamma is fairly constant for many decades, or eras with more low-gamma eclipses.
608:
Eclipse cycles have a period in which a certain number of synodic months closely equals an integer or half-integer number of draconic months: one such period after an eclipse, a
4146:(Note that a plus sign is used because the perigee moves eastward whereas the node moves westward.) A maximum of this is in 2024 (September), explaining why the ascending-node
135:): so as viewed from Earth, when the Moon appears nearest the Sun (at new moon) or furthest from it (at full moon), the three bodies are usually not exactly on the same line.
221:
of their orbit around the Sun: the Moon has to make up for this in order to come again into conjunction or opposition with the Sun. Secondly, the orbital nodes of the Moon
4848:
628:, and an eclipse can occur again. However, the synodic and draconic months are incommensurate: their ratio is not an integer number. We need to approximate this ratio by
3171:
another that is usually on the same day of the week (moving backwards irregularly by an average of a quarter day). At any given time there are seven hepton series active.
3740:. George van den Bergh first mentioned a period of 55 inex plus 5 saros (over 1682 years) before mentioning a period of 95 inex plus 11 saros (over 2948 years) in 1951.
10149:
3413:
days. In the table, taken as 940 synodic months, equivalent to 441 hollow months and 499 full months. This cycle, though useful for example in the calculation of the
3128:
5 synodic months. Successive solar or lunar eclipses may occur 1, 5 or 6 synodic months apart. When two solar eclipses are one month apart, one will be seen near the
304:
a particular solar eclipse in every 54 years 34 days period. Total solar eclipses are rare events, although they occur somewhere on Earth every 18 months on average.
3479:
constant. Two tritrix minus a saros (3263 lunations) is even closer to a whole number of anomaalistic months (3497.0018), being exactly thirteen seventeenths of the
9065:
536:
177:. Of course, to produce an eclipse, the Sun must also be around a node at that time – the same node for a solar eclipse or the opposite node for a lunar eclipse.
243:
days. Likewise, as seen from the Earth, the Sun passes both nodes as it moves along its ecliptic path. The period for the Sun to return to a node is called the
3913:), and furthermore the eclipses take place around halfway between the Earth's perihelion and aphelion. For example, in the tetrad of 2014-2015 (the so-called
3666:
noticed that there are eras when such tetrads occur comparatively frequently, interrupted by eras when they are rare. This variation takes about 6 centuries.
5491:
5456:
3618:. George van den Bergh called it the "Long Babylonian Period" or the "Old Babylonian Period", but there is no evidence that the Babylonians were aware of it.
4909:
3517:
in 1765. (The "Lambert I cycle is what we also call the inex.) Very close to a half-integer number of draconic months. It equals about 278 and a half years.
3470:, so that eclipses synchronize with the timing of Mercury's position in its orbit during each period, equaling 112 years minus one week or 1385 lunations.
5471:
3216:
William B. Hibbard who identified it in 1956. One lunar year less than a Hibbardina, 99 lunations, is only about a day and a half more than eight years.
4041:
the ascending node, so the period for the size of the Moon is the time it takes for the angle between the node and the perigee to go through 360°, or
7321:
6541:
4603:
704:
This table summarizes the characteristics of various eclipse cycles, and can be computed from the numerical results of the preceding paragraphs;
5541:
3634:(521 anomalistic years minus 5 days), and weeks (27185 weeks plus 0.1 day), leading to eclipses on the same day of the Julian calendar and week.
5451:
4920:
S. Newcomb (1882): On the recurrence of solar eclipses. Astron.Pap.Am.Eph. vol. I pt. I . Bureau of Navigation, Navy Dept., Washington 1882
3793:
Equals 76 inex plus 9 saros, therefore 2362 years and about a month, always occurring on the same node. Mentioned by A. Mackay in the 1800's.
3767:
the mismatch to about three years. The extra 25 lunations are needed because 100 saros cycles exceeds the life expectancy of a saros series.
4326:, it actually occurred before midnight and therefore on March 15 (using time based on the location of present-day Greenwich, and using the
3886:
number is 12 higher and whose inex number is 43 lower. As with solar eclipses, the Gregorian year of a lunar eclipse can be calculated as:
211:. The main reason is that during the time that the Moon has completed an orbit around the Earth, the Earth (and Moon) have completed about
649:
2.170391682 = : Quotients Convergents half DM/SM decimal named cycle (if any) 2; 2/1 = 2
5486:
200:
An eclipse does not occur every month, because one month after an eclipse the relative geometry of the Sun, Moon, and Earth has changed.
3238:
Equal to an inex minus a saros. A triple tritos is close to an integer number of anomalistic months and so will have similar properties.
8380:
8370:
8365:
5481:
5476:
5466:
5140:
5135:
5130:
5125:
5120:
5115:
5110:
639:: this arithmetical technique provides a series of progressively better approximations of any real numeric value by proper fractions.
5461:
5102:
4261:{\displaystyle {\frac {1}{1/{\text{period of node}}-1/{\text{period of perigee}}}}={\frac {1}{1/18.60+1/41{\text{ million}}}}=18.60}
3276:
Nearly 6940 days, but as an eclipse cycle can be taken as 235 synodic months. This is just an hour and a half less than 19 years of
8304:
5027:
4935:
G. van den Bergh (1955): Periodicity and Variation of Solar (and Lunar) Eclipses, 2 vols. Tjeenk Willink & Zn NV, Haarlem 1955
3360:
mentions it after discussing what we now call the saros, and says that it is called the exeligmos (ἐξελιγμός, meaning "unrolling").
10251:
8395:
8339:
5161:
4745:
3658:
Sometimes 4 total lunar eclipses occur in a row with intervals of 6 lunations (one semester) between them, and this is called a
4585:
162:, i.e. nearer Earth and apparently larger than average. In any case, the alignment must be almost perfect to cause an eclipse.
4010:
Length of "semester" interval. The length varies considerably, depending on the lunar and solar anomalies of the two eclipses.
4496:
3153:
Twelve (synodic) months, a little longer than an eclipse year: the Sun has returned to the node, so eclipses may again occur:
4729:
530:
of the synodic and draconic months (i.e. the period of the difference between the synodic and draconic months); in formula:
197:, a one- or two-month period that happens twice a year, around the time when the Sun is near the nodes of the Moon's orbit.
693:
11 4161/709 = 5.868829337 selebit 1 4519/770 = 5.868831169 4519/385 square year ...
189:
A symbolic orbital diagram from the view of the Earth at the center, showing the Moon's two nodes where eclipses can occur.
8729:
4929:
A. Pannekoek (1951): Periodicities in Lunar Eclipses. Proc. Kon. Ned. Acad. Wetensch. Ser.B vol.54 pp. 30..41 (1951)
3853:
A "panorama" of solar eclipses arranged by saros and inex has been produced by Luca Quaglia and John Tilley showing 61775
9636:
8105:
7855:
7825:
7782:
7752:
7572:
7512:
7467:
7397:
7140:
7070:
6967:
6907:
6902:
6842:
6520:
6485:
6420:
6415:
6350:
6032:
5962:
5932:
5857:
5852:
5772:
5147:
5097:
146:
diameter of the Sun (32′ 2″), the Moon as viewed from Earth's surface directly below the Moon (31′ 37″), and
3207:. Every third tzolkinex in a series is near an integer number of anomalistic months and so will have similar properties.
8080:
8035:
8030:
7990:
7985:
7965:
7955:
7935:
7910:
7905:
7860:
7787:
7772:
7732:
7712:
7697:
7687:
7662:
7622:
7607:
7547:
7532:
7497:
7457:
7447:
7427:
7402:
7377:
7362:
7342:
7295:
7290:
7260:
7245:
7225:
7185:
7180:
7120:
7115:
7040:
7012:
7007:
7002:
6947:
6942:
6862:
6827:
6792:
6787:
6772:
6752:
6712:
6707:
6692:
6647:
6637:
6622:
6617:
6582:
6577:
6557:
6525:
6465:
6455:
6395:
6365:
6335:
6295:
6290:
6280:
6265:
6260:
6222:
6192:
6162:
6142:
6092:
6087:
6072:
6067:
6022:
6002:
5967:
5902:
5797:
5777:
5742:
5722:
5692:
5687:
5657:
5647:
5627:
92:
with the Sun, the Moon may pass in front of the Sun as viewed from a narrow region on the surface of Earth and cause a
4796:
225:
westward in ecliptic longitude, completing a full circle in about 18.60 years, so a draconic month is shorter than a
10184:
8204:
8110:
8095:
8070:
8055:
8015:
8005:
7970:
7940:
7890:
7885:
7875:
7850:
7845:
7830:
7812:
7777:
7742:
7717:
7707:
7647:
7632:
7592:
7577:
7562:
7542:
7482:
7472:
7407:
7382:
7357:
7300:
7275:
7265:
7235:
7230:
7210:
7175:
7170:
7165:
7150:
7125:
7105:
7100:
7050:
7045:
7027:
6982:
6977:
6972:
6917:
6912:
6892:
6887:
6852:
6822:
6747:
6717:
6682:
6642:
6612:
6567:
6500:
6495:
6430:
6400:
6330:
6227:
6197:
6157:
6132:
6127:
6062:
6057:
6027:
6007:
5992:
5987:
5957:
5942:
5937:
5922:
5892:
5867:
5862:
5832:
5822:
5787:
5757:
5617:
5607:
4971:
4957:
4943:
4135:{\displaystyle {\frac {1}{1/{\text{period of node}}+1/{\text{period of perigee}}}}={\frac {1}{1/18.60+1/8.85}}=5.997}
3736:
One saros more than a Hybridia. The name for eclipse cycles useful for calculating the magnitudes of eclipses in the
4309:
40940.998 synodic months, 44429.006 draconic months, 43876.990 anomalistic months, 3310.007 anomalistic years, resp.
4289:
the mean anomaly of the Moon is increased by 1.1° per millennium squared, corresponding to 0.0030 anomalistic months
4286:
the mean argument of latitude is decreased by 0.16° per millennium squared, corresponding to 0.00045 draconic months
8209:
8050:
8045:
7920:
7870:
7802:
7797:
7757:
7682:
7642:
7617:
7517:
7507:
7477:
7442:
7392:
7372:
7337:
7200:
7110:
7085:
7080:
7035:
6962:
6937:
6922:
6882:
6877:
6857:
6847:
6812:
6782:
6777:
6702:
6697:
6677:
6627:
6490:
6480:
6460:
6435:
6390:
6385:
6360:
6320:
6315:
6245:
6212:
6147:
6097:
5997:
5927:
5897:
5847:
5827:
5792:
5782:
5737:
5732:
5727:
5677:
5672:
5587:
5582:
5567:
4151:
108:
is visible from the night half of Earth. The conjunction and opposition of the Moon together have a special name:
8075:
8010:
7995:
7980:
7960:
7930:
7915:
7820:
7807:
7747:
7737:
7702:
7602:
7567:
7557:
7537:
7502:
7462:
7310:
7305:
7280:
7270:
7240:
7205:
7145:
6997:
6932:
6872:
6867:
6837:
6802:
6797:
6762:
6737:
6732:
6722:
6662:
6657:
6592:
6587:
6475:
6425:
6410:
6380:
6375:
6345:
6325:
6305:
6300:
6275:
6270:
6250:
6232:
6202:
6177:
6172:
6107:
6102:
5887:
5817:
5812:
5752:
5747:
5697:
5682:
5667:
5652:
5557:
4716:
4692:
3925:
that are now producing tetrads will again be halfway between Earth's perihelion and aphelion in about 586 years.
715:
Any eclipse cycle, and indeed the interval between any two eclipses, can be expressed as a combination of saros (
4760:"Do periodic consolidations of Pacific countercurrents trigger global cooling by equatorially symmetric La Niña"
4638:"Do periodic consolidations of Pacific countercurrents trigger global cooling by equatorially symmetric La Niña"
4301:
40941 synodic months, 44429.003 draconic months, 43877.032 anomalistic months, 3310.007 anomalistic years, resp.
8329:
8100:
8090:
8085:
8040:
7950:
7925:
7900:
7895:
7865:
7840:
7835:
7792:
7727:
7677:
7672:
7657:
7652:
7637:
7612:
7582:
7552:
7527:
7492:
7487:
7452:
7437:
7432:
7417:
7412:
7387:
7367:
7347:
7285:
7255:
7220:
7215:
7195:
7190:
7155:
7130:
7095:
7075:
7022:
7017:
6952:
6817:
6807:
6767:
6742:
6727:
6687:
6667:
6652:
6632:
6607:
6602:
6597:
6572:
6530:
6470:
6355:
6310:
6285:
6255:
6237:
6207:
6187:
6182:
6167:
6152:
6137:
6122:
6117:
6112:
6082:
6077:
6052:
6047:
6042:
6037:
6012:
5977:
5972:
5907:
5872:
5802:
5707:
5702:
5662:
5642:
5632:
5622:
5612:
5577:
5572:
4147:
3996:
3585:
Equal to six Unidos or two Trihex. Useful for giving accurate calculations of the timing of lunisolar syzygies.
3136:. When they are five months apart, they are both seen near the Arctic Circle or both near the Antarctic Circle.
3091:
4798:
The Strategic Role of Perigean Spring Tides in Nautical History and North American Coastal Flooding, 1635-1976
10108:
8334:
8065:
8025:
8020:
8000:
7975:
7945:
7880:
7767:
7762:
7722:
7692:
7667:
7627:
7587:
7522:
7422:
7250:
7160:
7135:
7090:
7060:
7055:
6992:
6987:
6957:
6927:
6897:
6832:
6672:
6562:
6515:
6510:
6505:
6445:
6440:
6405:
6370:
6340:
6217:
6017:
5982:
5952:
5947:
5917:
5912:
5877:
5842:
5837:
5767:
5762:
5712:
5637:
5602:
5592:
4318:
direction relative to the effect of the lengthening synodic month already mentioned. This effect is known as
3670:(1951) offered an explanation for this phenomenon and found a period of 591 years. Van den Bergh (1954) from
3976:
9935:
9865:
9780:
9755:
9710:
9685:
9610:
9515:
9505:
9430:
9387:
9302:
9297:
9222:
9217:
9142:
9102:
9087:
8989:
8961:
8911:
8297:
8060:
7597:
7352:
7065:
6757:
6450:
5882:
5807:
5717:
5597:
5562:
5020:
4759:
4637:
10093:
10078:
10063:
10038:
10018:
9993:
9978:
9960:
9940:
9910:
9895:
9885:
9870:
9845:
9815:
9800:
9775:
9730:
9715:
9670:
9565:
9555:
9495:
9475:
9450:
9440:
9417:
9367:
9357:
9352:
9327:
9287:
9277:
9272:
9262:
9237:
9207:
9197:
9182:
9157:
9147:
9132:
9122:
9019:
9009:
8951:
8921:
8871:
8826:
8811:
8771:
8756:
4932:
G. van den Bergh (1954): Eclipses in the second millennium B.C. Tjeenk Willink & Zn NV, Haarlem 1954
3684:
3544:
the synodic month, giving a series of eclipses one selebit apart a life expectancy of thousands of years.
408:
The Earth will be nearly the same distance from the Sun, and tilted to it in nearly the same orientation.
342:
The Earth will be nearly the same distance from the Sun, and tilted to it in nearly the same orientation.
10246:
10131:
10121:
10116:
10048:
10023:
10008:
9945:
9920:
9850:
9830:
9825:
9760:
9740:
9705:
9690:
9665:
9600:
9550:
9540:
9530:
9520:
9485:
9470:
9460:
9402:
9392:
9377:
9337:
9317:
9307:
9257:
9247:
9227:
9192:
9177:
9167:
9117:
9107:
9039:
9024:
8974:
8956:
8906:
8131:
3599:
207:, is less than the time it takes for the Moon to return to the same ecliptic longitude as the Sun: the
151:
4292:
the mean anomaly of the sun is decreased by 0.002° per millennium squared, which is fairly negligible.
3646:
696:
Each of these is an eclipse cycle. Less accurate cycles may be constructed by combinations of these.
10144:
10058:
9988:
9930:
9905:
9860:
9795:
9750:
9725:
9680:
9585:
9560:
9480:
9347:
9267:
9187:
9044:
8994:
8969:
8941:
8916:
8866:
8861:
8816:
8796:
8761:
8344:
8229:
8141:
8136:
4983:
4462:
4327:
3081:
Half a synodic month (29.53 days). When there is an eclipse, there is a fair chance that at the next
670:
11 9031/4161 = 2.170391732 selebit 1 9808/4519 = 2.170391679 square year ...
712:
anomalistic years is near a whole number. (See graphs lower down of semester and Hipparchic cycle.)
10136:
10126:
10088:
10083:
10053:
10043:
10013:
9970:
9925:
9890:
9855:
9820:
9785:
9745:
9700:
9675:
9660:
9655:
9545:
9510:
9500:
9465:
9455:
9435:
9425:
9382:
9372:
9342:
9292:
9252:
9212:
9172:
9162:
9137:
9097:
9077:
9054:
8936:
8891:
8886:
8846:
8841:
8791:
8786:
8746:
8741:
8156:
8151:
4036:
the anomaly is 1. On average every 3 years there is a "super moon" eclipse, with anomaly near zero.
10212:
10073:
10033:
10028:
10003:
9983:
9955:
9950:
9900:
9880:
9840:
9835:
9810:
9790:
9770:
9765:
9720:
9695:
9620:
9615:
9595:
9590:
9575:
9570:
9525:
9445:
9397:
9362:
9312:
9282:
9232:
9152:
9112:
9049:
9034:
9029:
9004:
8999:
8984:
8979:
8946:
8931:
8926:
8901:
8896:
8876:
8856:
8851:
8831:
8821:
8806:
8801:
8766:
8751:
8321:
8290:
8271:
8146:
5082:
5013:
3627:
3514:
3385:
3343:
15,000, by which time it will have produced 707 consecutive eclipses. The name was introduced by
3320:
3095:
465:
101:
89:
165:
An eclipse can occur only when the Moon is on or near the plane of Earth's orbit, i.e. when its
10098:
10068:
9998:
9965:
9915:
9875:
9805:
9735:
9625:
9605:
9580:
9535:
9490:
9412:
9407:
9332:
9322:
9242:
9202:
9127:
9092:
9082:
9014:
8881:
8836:
8781:
8776:
8126:
3595:
3087:
4819:"Numerical expressions for precession formulae and mean elements for the Moon and the planets"
4704:
3376:. With 1385 fortnights, eclipses alternate between lunar and solar in 56 years minus 3.5 days.
34:. The interval between successive eclipses in the series is one saros, approximately 18 years.
5525:
4597:
4583:
4376:
3663:
4833:
595:{\displaystyle {\mbox{EY}}={\frac {{\mbox{SM}}\times {\mbox{DM}}}{{\mbox{SM}}-{\mbox{DM}}}}}
265:
be a solar eclipse somewhere on Earth. By the next month, there will certainly be no event.
8219:
5507:
4926:
A.C.D. Crommelin (1901): The 29-year eclipse cycle. Observatory xxiv nr.310, 379, Oct-1901
4859:
4829:
4774:
4652:
4475:
3680:
3671:
3426:
will be similar (central eclipses mostly total or mostly annular for example). Solar saros
3344:
412:
These conditions are related with the three periods of the Moon's orbital motion, viz. the
4891:
4515:
4511:
3890:
year = 28.945 × number of the saros series + 18.030 × number of the inex series − 2454.564
8:
8261:
8224:
8187:
4014:
3845:
year = 28.945 × number of the saros series + 18.030 × number of the inex series − 2882.55
3492:
3257:
636:
346:
These conditions are related to the three periods of the Moon's orbital motion, viz. the
139:
41:
may occur repeatedly, separated by certain intervals of time: these intervals are called
4938:
Jean Meeus (1991): Astronomical Algorithms (1st ed.). Willmann-Bell, Richmond VA 1991;
4877:
4863:
4778:
4656:
4319:
448:
type (partial, annular, total, mixed) of an eclipse. This orbital period is called the
4531:
3991:
3906:
3838:
3659:
3082:
609:
481:
174:
109:
45:. The series of eclipses separated by a repeat of one of these intervals is called an
4527:
4154:, is near apogee and annular. Although this cycle is about a day less than six years,
10241:
5519:
5157:
4967:
4953:
4939:
4492:
4343:
3667:
3243:
3176:
1308:
1087:
663:
501:
469:
449:
429:
417:
363:
351:
282:
166:
147:
124:
57:
3999:), and descending-node eclipses further south. The opposite is the case in October.
3953:
F, the mean argument of latitude (the angle between the Moon and the ascending node)
3898:
3873:
8249:
5513:
5060:
5050:
4892:"Five Millennium Catalog of Solar Eclipses -1699 to -1600 ( 1700 BCE to 1601 BCE )"
4782:
4680:
4660:
3914:
3631:
3549:
3480:
3467:
3133:
2111:
677:
5.875 47/4 octon 1 88/15 = 5.866666667
527:
359:
222:
128:
4908:
given by calculations – see p. 59 of Schaefer, B. E. (March 1990).
4031:
10189:
8718:
8713:
8708:
8703:
8698:
8693:
8688:
8683:
8678:
8673:
8668:
8663:
8658:
8653:
8648:
8643:
8638:
8633:
8628:
8623:
8618:
8613:
8608:
8603:
8598:
8593:
8588:
8583:
8578:
8573:
8568:
8563:
8558:
8553:
8548:
8543:
8538:
8533:
8528:
8523:
8518:
8513:
8508:
8503:
8498:
8493:
8488:
8483:
8478:
8473:
8468:
8463:
8458:
8453:
8448:
8443:
8438:
8433:
8428:
8423:
8418:
8413:
8408:
8403:
8177:
5435:
5430:
5425:
5420:
5415:
5410:
5405:
5400:
5395:
5390:
5385:
5380:
5375:
5370:
5365:
5360:
5355:
5350:
5345:
5340:
5335:
5330:
5325:
5320:
5315:
5310:
5305:
5300:
5295:
5290:
5285:
5280:
5275:
5270:
5265:
5260:
5255:
5250:
5245:
5240:
5235:
5230:
5225:
5220:
5215:
5210:
5205:
5200:
5195:
5190:
5185:
5180:
5175:
5170:
5070:
3969:
3910:
3447:
3443:
3439:
3435:
3431:
3427:
3394:
3226:
1655:
1217:
629:
453:
425:
367:
31:
3937:
oscillations that go up around perihelion and down around aphelion (see graph).
3513:
An eclipse cycle in which eclipses occur in similar circumstances, according to
229:. In all, the difference in period between synodic and draconic month is nearly
203:
As seen from the Earth, the time it takes for the Moon to return to a node, the
10179:
8199:
5065:
4905:
4901:
3918:
3737:
3414:
3106:
442:
421:
355:
226:
204:
194:
113:
3857:
from 11001 BC to AD 15000 (see below). Each column of the graph is a complete
3399:
Originally defined as 4 Metonic cycles minus one day or precisely 76 years of
123:
An eclipse does not occur at every new or full moon, because the plane of the
10235:
10194:
8313:
8214:
8172:
5036:
5000:
4995:
4741:
3928:
3854:
3270:
3129:
3114:
1352:
833:
413:
347:
292:
258:
208:
105:
93:
62:
84:, and the shadow of one body projected by the Sun falls on the other. So at
10169:
8182:
5055:
4876:
Based on the length of a century increasing by 62 seconds per century (see
4787:
4665:
4323:
3830:
3820:
3811:
3369:
402:
398:
336:
332:
244:
185:
4584:
Giovanni Valsecchi, Ettore Perozzi, Archie Roy, Bonnie Steves (Mar 1993).
673:
The ratio of synodic months per half eclipse year yields the same series:
3877:
Saros and inex values for solar eclipses calculated from approximate date
3858:
3650:
Inex and saros for tetrads between AD 1000 and 2500, showing the tetradia
3204:
686:
650:
296:
117:
17:
4846:
4305:
But because of the changing lengths of these, they actually changed by:
4989:
4155:
3615:
3555:
3373:
621:
170:
3865:
3319:
days. Eighteen inex cycles (see "Basic period") are equal to 520.9996
26:
4006:
3261:
3197:
1524:
1131:
678:
655:
617:
497:
97:
3642:
Equals 18 inex plus 2 saros, therefore 557 years plus about 1 month.
3611:
3357:
3249:
3099:
625:
613:
605:
as can be checked by filling in the numerical values listed above.
269:
132:
85:
4923:
J.N. Stockwell (1901): Eclips-cycles. Astron.J. 504 , 14-Aug-1901
3956:
l, the mean anomaly of the Moon (how far the Moon is from perigee)
3950:
D, the mean elongation (angle between the Sun and Moon longitudes)
8282:
5005:
387:
321:
104:
to the Sun, the Moon may pass through the shadow of Earth, and a
69:
38:
4486:
1265:
682:
659:
391:
325:
169:
is low. This happens when the Moon is around either of the two
142:
is on average about 5° 9′, much larger than the apparent
3932:
Time of year for solar eclipses between saros 90 and saros 210
4962:
Jean Meeus (2004): Mathematical Astronomy Morsels III, Ch.21
4912:. Royal Astronomical Society Quarterly Journal, 31(1), 53–67.
3965:
3384:
Very close to 65 years. Equals 67 lunar years and exceeds 65
493:
477:
300:
159:
73:
30:
Paths of partiality, annularity, hybridity, and totality for
452:, and together with the synodic month causes the so-called "
4693:
How often does a solar eclipse happen on the March equinox?
3834:
3313:
1480:
690:
667:
77:
436:
4948:
Jean Meeus (1997): Mathematical Astronomy Morsels , Ch.9
4705:
Eminent Lives in Twentieth-century Science & Religion
473:
81:
3356:
eclipse that occurred one saros earlier. Ptolemy in the
723:) intervals. These are listed in the column "formula".
4966:(pp. 123..140). Willmann-Bell, Richmond VA 2004;
4904:
of given moments of an eclipse are different from the
3825:
Antarctic Circle. The next such period begins in 2098.
3816:
3, since the anomaly changes by around 130° each time.
3702:
The next nine cycles, Cartouche through Accuratissima,
583:
573:
564:
554:
541:
4171:
4050:
646:
The continued fractions expansion for this ratio is:
539:
4952:(pp. 49..55). Willmann-Bell, Richmond VA 1997;
4150:, is near perigee and total and the descending-node
3368:
Named for the calculation of eclipses measured with
127:
around Earth is tilted with respect to the plane of
116:
for "junction"), because of the importance of these
4487:Littmann, Mark; Fred Espenak; Ken Willcox (2008).
4260:
4134:
594:
4847:T. C. van Flandern & K. F. Pulkkinen (1979).
3959:l', the mean anomaly of the Sun (or of the Earth)
10233:
4849:"Low-precision formulae for planetary positions"
4816:
3389:interval between two eclipses is quite constant.
3806:
3248:The best known eclipse cycle (described in the
373:
307:
295:in succession, which will be either 1, 5, or 6
3802:similar eclipses in character and week timing.
689:1 358/61 = 5.868852459 716/61
685:1 223/38 = 5.868421053 223/19
681:1 135/23 = 5.869565217
635:These fractions can be found by the method of
492:These are the lengths of the various types of
8298:
5021:
518:AM = 27.55454988 days (Anomalistic month)
4757:
4635:
4602:: CS1 maint: multiple names: authors list (
4579:
4577:
3837:series. The year of a solar eclipse (in the
3466:Equals approximately 353 synodic periods of
428:changes monotonically throughout any single
4794:
4615:
4613:
4586:"Periodic orbits close to that of the Moon"
3626:Achieves nearly an integer number (521) of
496:as discussed above (according to the lunar
8305:
8291:
5028:
5014:
4996:Eclipses, Cosmic Clockwork of the Ancients
4456:
4454:
4452:
4450:
4448:
4446:
4444:
4442:
4440:
4438:
4436:
4434:
4432:
4430:
4428:
4426:
4424:
4422:
4420:
4418:
4416:
4414:
4412:
4410:
4408:
4406:
4404:
515:DM = 27.212220817 days (Draconic month)
4786:
4664:
4574:
4402:
4400:
4398:
4396:
4394:
4392:
4390:
4388:
4386:
4384:
3940:
512:SM = 29.530588853 days (Synodic month)
193:Up to three eclipses may occur during an
4889:
4812:
4810:
4808:
4610:
4460:
4030:
4013:
4005:
3975:
3927:
3897:
3872:
3864:
3819:
3810:
3645:
3256:
521:EY = 346.620076 days (Eclipse year)
261:because of the precession of the nodes.
184:
56:
25:
4856:Astrophysical Journal Supplement Series
4631:
4629:
4627:
4625:
4480:
4362:properly, these are periods, not cycles
3829:Any eclipse can be assigned to a given
437:Eclipses would not occur in every month
10234:
4817:Jean-Louis Simon; et al. (1994).
4381:
3554:Not a long-lasting eclipse cycle, but
247:: about 346.6201 days, which is about
23:Calculation and prediction of eclipses
10221:symbol denotes next eclipse in series
8286:
5009:
4805:
4372:
4370:
4368:
3981:slope of simultaneity in this graph.
3869:Solar eclipses from –11000 to +15000.
52:
4990:Search 5,000 years worth of eclipses
4910:Lunar visibility and the crucifixion
4622:
4986:(more comprehensive than the above)
4619:See Panorama of Quaglia and Tilley.
4276:
3598:in a speculative interpretation of
666:1 777/358 = 2.170391061
662:1 484/223 = 2.170403587
658:1 293/135 = 2.170370370
487:
480:become aligned straight enough (in
173:on the ecliptic at the time of the
13:
8312:
5035:
4950:Solar Eclipses: Some Periodicities
4377:NASA Periodicity of solar eclipses
4365:
3841:) is then given approximately by:
3610:Fourteen inex plus two saros. The
3162:there are six hexon series active.
14:
10263:
10185:Eclipses in mythology and culture
8205:Eclipses in mythology and culture
4977:
4671:See especially Figures 10 and 13.
3905:This is related to the fact that
699:
10208:
10207:
9635:
9064:
8728:
8267:
8266:
8255:
8243:
8210:List of films featuring eclipses
7320:
6540:
5540:
4528:Five Millennium Catalog of Lunar
4152:solar eclipse of October 2, 2024
291:is the interval between any two
4883:
4870:
4840:
4767:Climate of the Past Discussions
4751:
4735:
4722:
4710:
4698:
4686:
4674:
4645:Climate of the Past Discussions
4564:
4555:
4463:"A Catalogue of Eclipse Cycles"
383:The Moon must be in full phase.
10252:Technical factors of astrology
4730:Saros, Inex and Eclipse cycles
4546:
4537:
4532:Solar Eclipses: -1999 to +3000
4521:
4505:
4469:
4356:
4148:solar eclipse of April 8, 2024
3997:solar eclipse of April 8, 2024
3096:lunar eclipse of June 24, 2002
3092:solar eclipse of June 10, 2002
317:The Moon must be in new phase.
276:
180:
1:
4984:A Catalogue of Eclipse Cycles
4758:John H. Duke (May 20, 2010).
4636:John H. Duke (May 20, 2010).
4534:, Fred Espenak and Jean Meeus
4489:Totality: Eclipses of the Sun
4349:
3088:lunar eclipse of May 26, 2002
394:of the Moon must be the same.
328:of the Moon must be the same.
289:periodicity of solar eclipses
5051:Baily's beads (diamond ring)
3807:Saros series and inex series
3491:A sextuple inex, adopted by
374:Repetition of lunar eclipses
308:Repetition of solar eclipses
299:. It is calculated that the
7:
4992:between 2000 BC and AD 3000
4746:Solar eclipse panaorama.xls
4681:SE Newsletter February 1999
4491:. Oxford University Press.
4337:
3090:is followed by the annular
624:of the Moon's orbit on the
620:) takes place again near a
484:) for an eclipse to occur.
10:
10268:
4826:Astronomy and Astrophysics
4590:Astronomy and Astrophysics
3895:other adjacent centuries.
500:ELP2000-85, valid for the
440:
280:
15:
10203:
10162:
10107:
9648:
9634:
9063:
8727:
8391:
8353:
8320:
8238:
8230:Solar eclipses in fiction
8165:
8119:
7319:
6539:
5539:
5500:
5444:
5156:
5090:
5081:
5043:
4552:Meeus (1991) ch. 49 p.334
4476:Solar Eclipses: 2011–2020
4328:proleptic Julian calendar
3614:attributes this cycle to
3105:For more information see
8340:Historically significant
8335:Total penumbral eclipses
3072:
245:eclipse or draconic year
16:Not to be confused with
8322:Lists of lunar eclipses
8262:Solar System portal
4834:1994A&A...282..663S
4561:Meeus (1991) form. 48.1
4543:Meeus (1991) form. 47.1
3515:Johann Heinrich Lambert
3132:and the other near the
8330:Central total eclipses
5001:The Saros and the Inex
4788:10.5194/cpd-6-905-2010
4666:10.5194/cpd-6-905-2010
4262:
4136:
4037:
4020:
4011:
3982:
3941:Properties of eclipses
3933:
3902:
3878:
3870:
3826:
3817:
3676:Canon der Finsternisse
3651:
3596:Henry Grattan Guinness
3590:Grattan Guinness cycle
3266:
2281:Grattan Guinness cycle
596:
268:However, about 5 or 6
190:
100:, when the Moon is in
88:, when the Moon is in
66:
35:
32:Solar Saros Series 136
5546:Total/hybrid eclipses
4896:NASA Eclipse Web Site
4717:29-Year-Eclipse-Cycle
4465:. Utrecht University.
4263:
4137:
4034:
4017:
4009:
3979:
3931:
3901:
3876:
3868:
3823:
3814:
3664:Giovanni Schiaparelli
3649:
3260:
597:
504:J2000.0; taken from (
397:The longitude of the
331:The longitude of the
188:
80:are aligned with the
60:
29:
8250:Astronomy portal
8220:Magnitude of eclipse
4795:Fergus Wood (1976).
4512:Periodicity of Lunar
4273:as September, 2019.
4169:
4048:
3672:Theodor von Oppolzer
3493:Phillippe de la Hire
3455:Quarter Palmen cycle
3345:George van den Bergh
2445:tetradia (Meeus III)
1737:quarter Palmen cycle
537:
257:year shorter than a
131:around the Sun (the
8188:Eclipse photography
4864:1979ApJS...41..391V
4779:2010CliPD...6..905D
4742:Saros-Inex Panorama
4657:2010CliPD...6..905D
3550:Cycle of Hipparchus
3481:Cycle of Hipparchus
3181:8 eclipse seasons,
2112:Cycle of Hipparchus
637:continued fractions
9641:Penumbral eclipses
5526:Muhammad's eclipse
4258:
4132:
4038:
4021:
4012:
3983:
3934:
3903:
3879:
3871:
3839:Gregorian calendar
3827:
3818:
3652:
3273:or enneadecaeteris
3267:
2487:tetradia (Meeus I)
592:
587:
577:
568:
558:
545:
508:) Meeus (1991) ):
472:is low, hence the
191:
67:
53:Eclipse conditions
36:
10247:Time in astronomy
10229:
10228:
10222:
10158:
10157:
8280:
8279:
8225:Planetary transit
5551:next total/hybrid
5535:
5534:
5520:Eclipse of Thales
5508:Mursili's eclipse
5083:Lists of eclipses
4498:978-0-19-953209-4
4344:Saros (astronomy)
4250:
4247:
4208:
4205:
4204:period of perigee
4189:
4124:
4087:
4084:
4083:period of perigee
4068:
3668:Antonie Pannekoek
3632:anomalistic years
3070:
3069:
590:
586:
576:
567:
557:
544:
450:anomalistic month
418:anomalistic month
405:must be the same.
386:The longitude of
352:anomalistic month
339:must be the same.
320:The longitude of
283:Saros (astronomy)
167:ecliptic latitude
10259:
10220:
10219:
10211:
10210:
10143:
9977:
9646:
9645:
9639:
9424:
9068:
8968:
8734:Partial eclipses
8732:
8307:
8300:
8293:
8284:
8283:
8270:
8269:
8260:
8259:
8258:
8248:
8247:
8246:
7819:
7330:
7326:Partial eclipses
7324:
7034:
6550:
6546:Annular eclipses
6544:
6244:
5550:
5544:
5514:Assyrian eclipse
5088:
5087:
5061:Solar prominence
5030:
5023:
5016:
5007:
5006:
4913:
4899:
4887:
4881:
4878:ΔT (timekeeping)
4874:
4868:
4867:
4853:
4844:
4838:
4837:
4823:
4814:
4803:
4802:
4792:
4790:
4764:
4755:
4749:
4739:
4733:
4726:
4720:
4714:
4708:
4702:
4696:
4690:
4684:
4678:
4672:
4670:
4668:
4642:
4633:
4620:
4617:
4608:
4607:
4601:
4593:
4581:
4572:
4568:
4562:
4559:
4553:
4550:
4544:
4541:
4535:
4525:
4519:
4509:
4503:
4502:
4484:
4478:
4473:
4467:
4466:
4458:
4379:
4374:
4363:
4360:
4277:Long-term trends
4267:
4265:
4264:
4259:
4251:
4249:
4248:
4245:
4240:
4226:
4214:
4209:
4207:
4206:
4203:
4201:
4190:
4187:
4185:
4173:
4141:
4139:
4138:
4133:
4125:
4123:
4119:
4105:
4093:
4088:
4086:
4085:
4082:
4080:
4069:
4066:
4064:
4052:
3915:Four Blood Moons
3717:Palaea-Horologia
3510:Lambert II cycle
3488:de la Hire cycle
3412:
3411:
3407:
3404:
3341:
3339:
3338:
3335:
3332:
3328:
3289:
3288:
3284:
3281:
3221:Sar (half saros)
3190:
3189:
3185:
3134:Antarctic Circle
2609:Palaea-Horologia
1943:Lambert II cycle
1863:de la Hire cycle
1579:
1578:
1574:
1230:
1229:
1225:
1218:sar (half saros)
798:
797:
793:
790:
726:
725:
630:common fractions
601:
599:
598:
593:
591:
589:
588:
584:
578:
574:
570:
569:
565:
559:
555:
551:
546:
542:
488:Numerical values
360:anomalistic year
256:
255:
251:
242:
241:
237:
234:
220:
219:
215:
154:(1° 23′).
10267:
10266:
10262:
10261:
10260:
10258:
10257:
10256:
10232:
10231:
10230:
10225:
10217:
10199:
10154:
10141:
10103:
9975:
9642:
9640:
9630:
9422:
9071:
9069:
9059:
8966:
8735:
8733:
8723:
8393:
8387:
8355:
8349:
8316:
8311:
8281:
8276:
8256:
8254:
8244:
8242:
8234:
8178:Eclipse chasing
8161:
8115:
7817:
7328:
7327:
7325:
7315:
7032:
6548:
6547:
6545:
6535:
6242:
5548:
5547:
5545:
5531:
5496:
5440:
5152:
5077:
5071:helmet streamer
5039:
5034:
4980:
4917:
4916:
4888:
4884:
4875:
4871:
4851:
4845:
4841:
4821:
4815:
4806:
4762:
4756:
4752:
4740:
4736:
4727:
4723:
4715:
4711:
4703:
4699:
4691:
4687:
4679:
4675:
4640:
4634:
4623:
4618:
4611:
4595:
4594:
4582:
4575:
4569:
4565:
4560:
4556:
4551:
4547:
4542:
4538:
4526:
4522:
4510:
4506:
4499:
4485:
4481:
4474:
4470:
4459:
4382:
4375:
4366:
4361:
4357:
4352:
4340:
4279:
4244:
4236:
4222:
4218:
4213:
4202:
4197:
4186:
4181:
4177:
4172:
4170:
4167:
4166:
4115:
4101:
4097:
4092:
4081:
4076:
4065:
4060:
4056:
4051:
4049:
4046:
4045:
3943:
3809:
3693:Hyper exeligmos
3683:of the Earth's
3600:Revelation 9:15
3522:Macdonald cycle
3505:quite constant.
3409:
3405:
3402:
3400:
3395:Callippic cycle
3336:
3333:
3330:
3329:
3326:
3324:
3286:
3282:
3279:
3277:
3187:
3183:
3182:
3075:
2529:hyper exeligmos
1985:Macdonald cycle
1656:Callippic cycle
1576:
1572:
1571:
1227:
1223:
1222:
795:
791:
788:
786:
769:
764:
759:
754:
749:
744:
739:
702:
694:
671:
582:
572:
571:
563:
553:
552:
550:
540:
538:
535:
534:
490:
454:full moon cycle
445:
439:
403:descending node
376:
337:descending node
310:
285:
279:
253:
249:
248:
239:
235:
232:
230:
217:
213:
212:
183:
72:may occur when
61:A diagram of a
55:
24:
21:
12:
11:
5:
10265:
10255:
10254:
10249:
10244:
10227:
10226:
10224:
10223:
10215:
10204:
10201:
10200:
10198:
10197:
10192:
10187:
10182:
10180:Eclipse season
10177:
10172:
10166:
10164:
10160:
10159:
10156:
10155:
10153:
10152:
10147:
10139:
10134:
10129:
10124:
10119:
10113:
10111:
10105:
10104:
10102:
10101:
10096:
10091:
10086:
10081:
10076:
10071:
10066:
10061:
10056:
10051:
10046:
10041:
10036:
10031:
10026:
10021:
10016:
10011:
10006:
10001:
9996:
9991:
9986:
9981:
9973:
9968:
9963:
9958:
9953:
9948:
9943:
9938:
9933:
9928:
9923:
9918:
9913:
9908:
9903:
9898:
9893:
9888:
9883:
9878:
9873:
9868:
9863:
9858:
9853:
9848:
9843:
9838:
9833:
9828:
9823:
9818:
9813:
9808:
9803:
9798:
9793:
9788:
9783:
9778:
9773:
9768:
9763:
9758:
9753:
9748:
9743:
9738:
9733:
9728:
9723:
9718:
9713:
9708:
9703:
9698:
9693:
9688:
9683:
9678:
9673:
9668:
9663:
9658:
9652:
9650:
9643:
9632:
9631:
9629:
9628:
9623:
9618:
9613:
9608:
9603:
9598:
9593:
9588:
9583:
9578:
9573:
9568:
9563:
9558:
9553:
9548:
9543:
9538:
9533:
9528:
9523:
9518:
9513:
9508:
9503:
9498:
9493:
9488:
9483:
9478:
9473:
9468:
9463:
9458:
9453:
9448:
9443:
9438:
9433:
9428:
9420:
9415:
9410:
9405:
9400:
9395:
9390:
9385:
9380:
9375:
9370:
9365:
9360:
9355:
9350:
9345:
9340:
9335:
9330:
9325:
9320:
9315:
9310:
9305:
9300:
9295:
9290:
9285:
9280:
9275:
9270:
9265:
9260:
9255:
9250:
9245:
9240:
9235:
9230:
9225:
9220:
9215:
9210:
9205:
9200:
9195:
9190:
9185:
9180:
9175:
9170:
9165:
9160:
9155:
9150:
9145:
9140:
9135:
9130:
9125:
9120:
9115:
9110:
9105:
9100:
9095:
9090:
9085:
9080:
9074:
9072:
9070:Total eclipses
9061:
9060:
9058:
9057:
9052:
9047:
9042:
9037:
9032:
9027:
9022:
9017:
9012:
9007:
9002:
8997:
8992:
8987:
8982:
8977:
8972:
8964:
8959:
8954:
8949:
8944:
8939:
8934:
8929:
8924:
8919:
8914:
8909:
8904:
8899:
8894:
8889:
8884:
8879:
8874:
8869:
8864:
8859:
8854:
8849:
8844:
8839:
8834:
8829:
8824:
8819:
8814:
8809:
8804:
8799:
8794:
8789:
8784:
8779:
8774:
8769:
8764:
8759:
8754:
8749:
8744:
8738:
8736:
8725:
8724:
8722:
8721:
8716:
8711:
8706:
8701:
8696:
8691:
8686:
8681:
8676:
8671:
8666:
8661:
8656:
8651:
8646:
8641:
8636:
8631:
8626:
8621:
8616:
8611:
8606:
8601:
8596:
8591:
8586:
8581:
8576:
8571:
8566:
8561:
8556:
8551:
8546:
8541:
8536:
8531:
8526:
8521:
8516:
8511:
8506:
8501:
8496:
8491:
8486:
8481:
8476:
8471:
8466:
8461:
8456:
8451:
8446:
8441:
8436:
8431:
8426:
8421:
8416:
8411:
8406:
8400:
8398:
8392:Lunar eclipses
8389:
8388:
8386:
8385:
8384:
8383:
8375:
8374:
8373:
8368:
8359:
8357:
8354:Lunar eclipses
8351:
8350:
8348:
8347:
8342:
8337:
8332:
8326:
8324:
8318:
8317:
8314:Lunar eclipses
8310:
8309:
8302:
8295:
8287:
8278:
8277:
8275:
8274:
8264:
8252:
8239:
8236:
8235:
8233:
8232:
8227:
8222:
8217:
8212:
8207:
8202:
8200:Eclipse season
8197:
8192:
8191:
8190:
8185:
8175:
8169:
8167:
8163:
8162:
8160:
8159:
8154:
8149:
8144:
8139:
8134:
8129:
8123:
8121:
8117:
8116:
8114:
8113:
8108:
8103:
8098:
8093:
8088:
8083:
8078:
8073:
8068:
8063:
8058:
8053:
8048:
8043:
8038:
8033:
8028:
8023:
8018:
8013:
8008:
8003:
7998:
7993:
7988:
7983:
7978:
7973:
7968:
7963:
7958:
7953:
7948:
7943:
7938:
7933:
7928:
7923:
7918:
7913:
7908:
7903:
7898:
7893:
7888:
7883:
7878:
7873:
7868:
7863:
7858:
7853:
7848:
7843:
7838:
7833:
7828:
7823:
7815:
7810:
7805:
7800:
7795:
7790:
7785:
7780:
7775:
7770:
7765:
7760:
7755:
7750:
7745:
7740:
7735:
7730:
7725:
7720:
7715:
7710:
7705:
7700:
7695:
7690:
7685:
7680:
7675:
7670:
7665:
7660:
7655:
7650:
7645:
7640:
7635:
7630:
7625:
7620:
7615:
7610:
7605:
7600:
7595:
7590:
7585:
7580:
7575:
7570:
7565:
7560:
7555:
7550:
7545:
7540:
7535:
7530:
7525:
7520:
7515:
7510:
7505:
7500:
7495:
7490:
7485:
7480:
7475:
7470:
7465:
7460:
7455:
7450:
7445:
7440:
7435:
7430:
7425:
7420:
7415:
7410:
7405:
7400:
7395:
7390:
7385:
7380:
7375:
7370:
7365:
7360:
7355:
7350:
7345:
7340:
7334:
7332:
7317:
7316:
7314:
7313:
7308:
7303:
7298:
7293:
7288:
7283:
7278:
7273:
7268:
7263:
7258:
7253:
7248:
7243:
7238:
7233:
7228:
7223:
7218:
7213:
7208:
7203:
7198:
7193:
7188:
7183:
7178:
7173:
7168:
7163:
7158:
7153:
7148:
7143:
7138:
7133:
7128:
7123:
7118:
7113:
7108:
7103:
7098:
7093:
7088:
7083:
7078:
7073:
7068:
7063:
7058:
7053:
7048:
7043:
7038:
7030:
7025:
7020:
7015:
7010:
7005:
7000:
6995:
6990:
6985:
6980:
6975:
6970:
6965:
6960:
6955:
6950:
6945:
6940:
6935:
6930:
6925:
6920:
6915:
6910:
6905:
6900:
6895:
6890:
6885:
6880:
6875:
6870:
6865:
6860:
6855:
6850:
6845:
6840:
6835:
6830:
6825:
6820:
6815:
6810:
6805:
6800:
6795:
6790:
6785:
6780:
6775:
6770:
6765:
6760:
6755:
6750:
6745:
6740:
6735:
6730:
6725:
6720:
6715:
6710:
6705:
6700:
6695:
6690:
6685:
6680:
6675:
6670:
6665:
6660:
6655:
6650:
6645:
6640:
6635:
6630:
6625:
6620:
6615:
6610:
6605:
6600:
6595:
6590:
6585:
6580:
6575:
6570:
6565:
6560:
6554:
6552:
6537:
6536:
6534:
6533:
6528:
6523:
6518:
6513:
6508:
6503:
6498:
6493:
6488:
6483:
6478:
6473:
6468:
6463:
6458:
6453:
6448:
6443:
6438:
6433:
6428:
6423:
6418:
6413:
6408:
6403:
6398:
6393:
6388:
6383:
6378:
6373:
6368:
6363:
6358:
6353:
6348:
6343:
6338:
6333:
6328:
6323:
6318:
6313:
6308:
6303:
6298:
6293:
6288:
6283:
6278:
6273:
6268:
6263:
6258:
6253:
6248:
6240:
6235:
6230:
6225:
6220:
6215:
6210:
6205:
6200:
6195:
6190:
6185:
6180:
6175:
6170:
6165:
6160:
6155:
6150:
6145:
6140:
6135:
6130:
6125:
6120:
6115:
6110:
6105:
6100:
6095:
6090:
6085:
6080:
6075:
6070:
6065:
6060:
6055:
6050:
6045:
6040:
6035:
6030:
6025:
6020:
6015:
6010:
6005:
6000:
5995:
5990:
5985:
5980:
5975:
5970:
5965:
5960:
5955:
5950:
5945:
5940:
5935:
5930:
5925:
5920:
5915:
5910:
5905:
5900:
5895:
5890:
5885:
5880:
5875:
5870:
5865:
5860:
5855:
5850:
5845:
5840:
5835:
5830:
5825:
5820:
5815:
5810:
5805:
5800:
5795:
5790:
5785:
5780:
5775:
5770:
5765:
5760:
5755:
5750:
5745:
5740:
5735:
5730:
5725:
5720:
5715:
5710:
5705:
5700:
5695:
5690:
5685:
5680:
5675:
5670:
5665:
5660:
5655:
5650:
5645:
5640:
5635:
5630:
5625:
5620:
5615:
5610:
5605:
5600:
5595:
5590:
5585:
5580:
5575:
5570:
5565:
5560:
5554:
5552:
5537:
5536:
5533:
5532:
5530:
5529:
5523:
5517:
5511:
5504:
5502:
5498:
5497:
5495:
5494:
5489:
5484:
5479:
5474:
5469:
5464:
5459:
5454:
5448:
5446:
5442:
5441:
5439:
5438:
5433:
5428:
5423:
5418:
5413:
5408:
5403:
5398:
5393:
5388:
5383:
5378:
5373:
5368:
5363:
5358:
5353:
5348:
5343:
5338:
5333:
5328:
5323:
5318:
5313:
5308:
5303:
5298:
5293:
5288:
5283:
5278:
5273:
5268:
5263:
5258:
5253:
5248:
5243:
5238:
5233:
5228:
5223:
5218:
5213:
5208:
5203:
5198:
5193:
5188:
5183:
5178:
5173:
5167:
5165:
5154:
5153:
5151:
5150:
5145:
5144:
5143:
5138:
5133:
5128:
5123:
5118:
5113:
5105:
5100:
5094:
5092:
5085:
5079:
5078:
5076:
5075:
5074:
5073:
5066:Stellar corona
5063:
5058:
5053:
5047:
5045:
5041:
5040:
5037:Solar eclipses
5033:
5032:
5025:
5018:
5010:
5004:
5003:
4998:
4993:
4987:
4979:
4978:External links
4976:
4975:
4974:
4960:
4946:
4936:
4933:
4930:
4927:
4924:
4921:
4915:
4914:
4906:Ephemeris Time
4902:Universal Time
4890:Fred Espenak.
4882:
4869:
4839:
4804:
4750:
4734:
4721:
4709:
4697:
4685:
4673:
4651:(3): 928–929.
4621:
4609:
4573:
4563:
4554:
4545:
4536:
4520:
4518:, Fred Espenak
4516:Solar Eclipses
4504:
4497:
4479:
4468:
4461:Rob van Gent.
4380:
4364:
4354:
4353:
4351:
4348:
4347:
4346:
4339:
4336:
4311:
4310:
4303:
4302:
4294:
4293:
4290:
4287:
4278:
4275:
4270:
4269:
4257:
4254:
4243:
4239:
4235:
4232:
4229:
4225:
4221:
4217:
4212:
4200:
4196:
4193:
4188:period of node
4184:
4180:
4176:
4144:
4143:
4131:
4128:
4122:
4118:
4114:
4111:
4108:
4104:
4100:
4096:
4091:
4079:
4075:
4072:
4067:period of node
4063:
4059:
4055:
3961:
3960:
3957:
3954:
3951:
3942:
3939:
3919:mean longitude
3892:
3891:
3855:solar eclipses
3847:
3846:
3808:
3805:
3804:
3803:
3799:
3795:
3794:
3791:
3787:
3786:
3782:
3778:
3777:
3773:
3769:
3768:
3764:
3760:
3759:
3755:
3751:
3750:
3746:
3742:
3741:
3738:3rd millennium
3734:
3730:
3729:
3726:
3722:
3721:
3718:
3714:
3713:
3710:
3699:
3698:
3694:
3690:
3689:
3656:
3644:
3643:
3640:
3636:
3635:
3624:
3620:
3619:
3608:
3604:
3603:
3591:
3587:
3586:
3583:
3579:
3578:
3574:
3570:
3569:
3565:
3561:
3560:
3552:
3546:
3545:
3541:
3537:
3536:
3532:
3528:
3527:
3523:
3519:
3518:
3511:
3507:
3506:
3502:
3498:
3497:
3489:
3485:
3484:
3476:
3472:
3471:
3464:
3460:
3459:
3456:
3452:
3451:
3423:
3419:
3418:
3415:date of Easter
3397:
3391:
3390:
3382:
3378:
3377:
3366:
3362:
3361:
3353:
3349:
3348:
3323:so an inex is
3316:
3310:
3309:
3306:
3302:
3301:
3297:
3293:
3292:
3274:
3255:
3254:
3246:
3240:
3239:
3236:
3232:
3231:
3222:
3218:
3217:
3213:
3209:
3208:
3200:
3194:
3193:
3179:
3173:
3172:
3168:
3164:
3163:
3159:
3155:
3154:
3151:
3147:
3146:
3142:
3138:
3137:
3126:
3122:
3121:
3117:
3111:
3110:
3107:eclipse season
3103:
3094:and penumbral
3079:
3074:
3071:
3068:
3067:
3064:
3061:
3058:
3055:
3052:
3049:
3046:
3043:
3040:
3030:
3026:
3025:
3022:
3019:
3016:
3013:
3010:
3007:
3004:
3001:
2998:
2988:
2984:
2983:
2980:
2977:
2974:
2971:
2968:
2965:
2962:
2959:
2956:
2946:
2942:
2941:
2938:
2935:
2932:
2929:
2926:
2923:
2920:
2917:
2914:
2904:
2900:
2899:
2896:
2893:
2890:
2887:
2884:
2881:
2878:
2875:
2872:
2862:
2858:
2857:
2854:
2851:
2848:
2845:
2842:
2839:
2836:
2833:
2830:
2820:
2816:
2815:
2812:
2809:
2806:
2803:
2800:
2797:
2794:
2791:
2788:
2778:
2774:
2773:
2770:
2767:
2764:
2761:
2758:
2755:
2752:
2749:
2746:
2736:
2732:
2731:
2728:
2725:
2722:
2719:
2716:
2713:
2710:
2707:
2704:
2694:
2690:
2689:
2686:
2683:
2680:
2677:
2674:
2671:
2668:
2665:
2662:
2652:
2648:
2647:
2644:
2641:
2638:
2635:
2632:
2629:
2626:
2623:
2620:
2610:
2606:
2605:
2602:
2599:
2596:
2593:
2590:
2587:
2584:
2581:
2578:
2572:
2568:
2567:
2564:
2561:
2558:
2555:
2552:
2549:
2546:
2543:
2540:
2530:
2526:
2525:
2522:
2519:
2516:
2513:
2510:
2507:
2504:
2501:
2498:
2488:
2484:
2483:
2480:
2477:
2474:
2471:
2468:
2465:
2462:
2459:
2456:
2446:
2442:
2441:
2438:
2435:
2432:
2429:
2426:
2423:
2420:
2417:
2414:
2404:
2400:
2399:
2396:
2393:
2390:
2387:
2384:
2381:
2378:
2375:
2372:
2366:
2362:
2361:
2358:
2355:
2352:
2349:
2346:
2343:
2340:
2337:
2334:
2324:
2320:
2319:
2316:
2313:
2310:
2307:
2304:
2301:
2298:
2295:
2292:
2282:
2278:
2277:
2274:
2271:
2268:
2265:
2262:
2259:
2256:
2253:
2250:
2240:
2236:
2235:
2232:
2229:
2226:
2223:
2220:
2217:
2214:
2211:
2208:
2198:
2194:
2193:
2190:
2187:
2184:
2181:
2178:
2175:
2172:
2169:
2166:
2156:
2152:
2151:
2148:
2145:
2142:
2139:
2136:
2133:
2130:
2127:
2124:
2114:
2108:
2107:
2104:
2101:
2098:
2095:
2092:
2089:
2086:
2083:
2080:
2070:
2066:
2065:
2062:
2059:
2056:
2053:
2050:
2047:
2044:
2041:
2038:
2028:
2024:
2023:
2020:
2017:
2014:
2011:
2008:
2005:
2002:
1999:
1996:
1986:
1982:
1981:
1978:
1975:
1972:
1969:
1966:
1963:
1960:
1957:
1954:
1944:
1940:
1939:
1936:
1933:
1930:
1927:
1924:
1921:
1918:
1915:
1912:
1902:
1898:
1897:
1894:
1891:
1888:
1885:
1882:
1879:
1876:
1873:
1870:
1864:
1860:
1859:
1856:
1853:
1850:
1847:
1844:
1841:
1838:
1835:
1832:
1822:
1818:
1817:
1814:
1811:
1808:
1805:
1802:
1799:
1796:
1793:
1790:
1780:
1776:
1775:
1772:
1769:
1766:
1763:
1760:
1757:
1754:
1751:
1748:
1738:
1734:
1733:
1730:
1727:
1724:
1721:
1718:
1715:
1712:
1709:
1706:
1700:
1696:
1695:
1692:
1689:
1686:
1683:
1680:
1677:
1674:
1671:
1668:
1658:
1652:
1651:
1648:
1645:
1642:
1639:
1636:
1633:
1630:
1627:
1624:
1615:
1611:
1610:
1607:
1604:
1601:
1598:
1595:
1592:
1589:
1586:
1583:
1565:
1561:
1560:
1557:
1554:
1551:
1548:
1545:
1542:
1539:
1536:
1533:
1527:
1521:
1520:
1517:
1514:
1511:
1508:
1505:
1502:
1499:
1496:
1493:
1488:
1477:
1476:
1473:
1470:
1467:
1464:
1461:
1458:
1455:
1452:
1449:
1439:
1435:
1434:
1431:
1428:
1425:
1422:
1419:
1416:
1413:
1410:
1407:
1397:
1393:
1392:
1389:
1386:
1383:
1380:
1377:
1374:
1371:
1368:
1365:
1355:
1349:
1348:
1345:
1342:
1339:
1336:
1333:
1330:
1327:
1324:
1321:
1316:
1305:
1304:
1301:
1298:
1295:
1292:
1289:
1286:
1283:
1280:
1277:
1268:
1262:
1261:
1258:
1255:
1252:
1249:
1246:
1243:
1240:
1237:
1234:
1220:
1214:
1213:
1210:
1207:
1204:
1201:
1198:
1195:
1192:
1189:
1186:
1176:
1172:
1171:
1168:
1165:
1162:
1159:
1156:
1153:
1150:
1147:
1144:
1134:
1128:
1127:
1124:
1121:
1118:
1115:
1112:
1109:
1106:
1103:
1100:
1090:
1084:
1083:
1080:
1077:
1074:
1071:
1068:
1065:
1062:
1059:
1056:
1046:
1042:
1041:
1038:
1035:
1032:
1029:
1026:
1023:
1020:
1017:
1014:
1004:
1000:
999:
996:
993:
990:
987:
984:
981:
978:
975:
972:
962:
958:
957:
954:
951:
948:
945:
942:
939:
936:
933:
930:
920:
916:
915:
912:
909:
906:
903:
900:
897:
894:
891:
888:
878:
874:
873:
870:
867:
864:
861:
858:
855:
852:
849:
846:
836:
830:
829:
826:
823:
820:
817:
814:
811:
808:
805:
802:
779:
775:
774:
771:
766:
761:
756:
751:
746:
741:
736:
733:
730:
701:
700:Eclipse cycles
698:
675:
648:
603:
602:
581:
562:
549:
523:
522:
519:
516:
513:
489:
486:
443:Eclipse season
441:Main article:
438:
435:
422:draconic month
410:
409:
406:
399:ascending node
395:
384:
375:
372:
356:draconic month
344:
343:
340:
333:ascending node
329:
318:
309:
306:
297:synodic months
293:solar eclipses
278:
275:
227:sidereal month
205:draconic month
195:eclipse season
182:
179:
152:lunar distance
148:Earth's shadow
65:(not to scale)
54:
51:
47:eclipse series
43:eclipse cycles
22:
9:
6:
4:
3:
2:
10264:
10253:
10250:
10248:
10245:
10243:
10240:
10239:
10237:
10216:
10214:
10206:
10205:
10202:
10196:
10195:Solar eclipse
10193:
10191:
10188:
10186:
10183:
10181:
10178:
10176:
10175:Eclipse cycle
10173:
10171:
10168:
10167:
10165:
10161:
10151:
10148:
10146:
10140:
10138:
10135:
10133:
10130:
10128:
10125:
10123:
10120:
10118:
10115:
10114:
10112:
10110:
10106:
10100:
10097:
10095:
10092:
10090:
10087:
10085:
10082:
10080:
10077:
10075:
10072:
10070:
10067:
10065:
10062:
10060:
10057:
10055:
10052:
10050:
10047:
10045:
10042:
10040:
10037:
10035:
10032:
10030:
10027:
10025:
10022:
10020:
10017:
10015:
10012:
10010:
10007:
10005:
10002:
10000:
9997:
9995:
9992:
9990:
9987:
9985:
9982:
9980:
9974:
9972:
9969:
9967:
9964:
9962:
9959:
9957:
9954:
9952:
9949:
9947:
9944:
9942:
9939:
9937:
9934:
9932:
9929:
9927:
9924:
9922:
9919:
9917:
9914:
9912:
9909:
9907:
9904:
9902:
9899:
9897:
9894:
9892:
9889:
9887:
9884:
9882:
9879:
9877:
9874:
9872:
9869:
9867:
9864:
9862:
9859:
9857:
9854:
9852:
9849:
9847:
9844:
9842:
9839:
9837:
9834:
9832:
9829:
9827:
9824:
9822:
9819:
9817:
9814:
9812:
9809:
9807:
9804:
9802:
9799:
9797:
9794:
9792:
9789:
9787:
9784:
9782:
9779:
9777:
9774:
9772:
9769:
9767:
9764:
9762:
9759:
9757:
9754:
9752:
9749:
9747:
9744:
9742:
9739:
9737:
9734:
9732:
9729:
9727:
9724:
9722:
9719:
9717:
9714:
9712:
9709:
9707:
9704:
9702:
9699:
9697:
9694:
9692:
9689:
9687:
9684:
9682:
9679:
9677:
9674:
9672:
9669:
9667:
9664:
9662:
9659:
9657:
9654:
9653:
9651:
9647:
9644:
9638:
9633:
9627:
9624:
9622:
9619:
9617:
9614:
9612:
9609:
9607:
9604:
9602:
9599:
9597:
9594:
9592:
9589:
9587:
9584:
9582:
9579:
9577:
9574:
9572:
9569:
9567:
9564:
9562:
9559:
9557:
9554:
9552:
9549:
9547:
9544:
9542:
9539:
9537:
9534:
9532:
9529:
9527:
9524:
9522:
9519:
9517:
9514:
9512:
9509:
9507:
9504:
9502:
9499:
9497:
9494:
9492:
9489:
9487:
9484:
9482:
9479:
9477:
9474:
9472:
9469:
9467:
9464:
9462:
9459:
9457:
9454:
9452:
9449:
9447:
9444:
9442:
9439:
9437:
9434:
9432:
9429:
9427:
9421:
9419:
9416:
9414:
9411:
9409:
9406:
9404:
9401:
9399:
9396:
9394:
9391:
9389:
9386:
9384:
9381:
9379:
9376:
9374:
9371:
9369:
9366:
9364:
9361:
9359:
9356:
9354:
9351:
9349:
9346:
9344:
9341:
9339:
9336:
9334:
9331:
9329:
9326:
9324:
9321:
9319:
9316:
9314:
9311:
9309:
9306:
9304:
9301:
9299:
9296:
9294:
9291:
9289:
9286:
9284:
9281:
9279:
9276:
9274:
9271:
9269:
9266:
9264:
9261:
9259:
9256:
9254:
9251:
9249:
9246:
9244:
9241:
9239:
9236:
9234:
9231:
9229:
9226:
9224:
9221:
9219:
9216:
9214:
9211:
9209:
9206:
9204:
9201:
9199:
9196:
9194:
9191:
9189:
9186:
9184:
9181:
9179:
9176:
9174:
9171:
9169:
9166:
9164:
9161:
9159:
9156:
9154:
9151:
9149:
9146:
9144:
9141:
9139:
9136:
9134:
9131:
9129:
9126:
9124:
9121:
9119:
9116:
9114:
9111:
9109:
9106:
9104:
9101:
9099:
9096:
9094:
9091:
9089:
9086:
9084:
9081:
9079:
9076:
9075:
9073:
9067:
9062:
9056:
9053:
9051:
9048:
9046:
9043:
9041:
9038:
9036:
9033:
9031:
9028:
9026:
9023:
9021:
9018:
9016:
9013:
9011:
9008:
9006:
9003:
9001:
8998:
8996:
8993:
8991:
8988:
8986:
8983:
8981:
8978:
8976:
8973:
8971:
8965:
8963:
8960:
8958:
8955:
8953:
8950:
8948:
8945:
8943:
8940:
8938:
8935:
8933:
8930:
8928:
8925:
8923:
8920:
8918:
8915:
8913:
8910:
8908:
8905:
8903:
8900:
8898:
8895:
8893:
8890:
8888:
8885:
8883:
8880:
8878:
8875:
8873:
8870:
8868:
8865:
8863:
8860:
8858:
8855:
8853:
8850:
8848:
8845:
8843:
8840:
8838:
8835:
8833:
8830:
8828:
8825:
8823:
8820:
8818:
8815:
8813:
8810:
8808:
8805:
8803:
8800:
8798:
8795:
8793:
8790:
8788:
8785:
8783:
8780:
8778:
8775:
8773:
8770:
8768:
8765:
8763:
8760:
8758:
8755:
8753:
8750:
8748:
8745:
8743:
8740:
8739:
8737:
8731:
8726:
8720:
8717:
8715:
8712:
8710:
8707:
8705:
8702:
8700:
8697:
8695:
8692:
8690:
8687:
8685:
8682:
8680:
8677:
8675:
8672:
8670:
8667:
8665:
8662:
8660:
8657:
8655:
8652:
8650:
8647:
8645:
8642:
8640:
8637:
8635:
8632:
8630:
8627:
8625:
8622:
8620:
8617:
8615:
8612:
8610:
8607:
8605:
8602:
8600:
8597:
8595:
8592:
8590:
8587:
8585:
8582:
8580:
8577:
8575:
8572:
8570:
8567:
8565:
8562:
8560:
8557:
8555:
8552:
8550:
8547:
8545:
8542:
8540:
8537:
8535:
8532:
8530:
8527:
8525:
8522:
8520:
8517:
8515:
8512:
8510:
8507:
8505:
8502:
8500:
8497:
8495:
8492:
8490:
8487:
8485:
8482:
8480:
8477:
8475:
8472:
8470:
8467:
8465:
8462:
8460:
8457:
8455:
8452:
8450:
8447:
8445:
8442:
8440:
8437:
8435:
8432:
8430:
8427:
8425:
8422:
8420:
8417:
8415:
8412:
8410:
8407:
8405:
8402:
8401:
8399:
8397:
8390:
8382:
8379:
8378:
8376:
8372:
8369:
8367:
8364:
8363:
8361:
8360:
8358:
8352:
8346:
8343:
8341:
8338:
8336:
8333:
8331:
8328:
8327:
8325:
8323:
8319:
8315:
8308:
8303:
8301:
8296:
8294:
8289:
8288:
8285:
8273:
8265:
8263:
8253:
8251:
8241:
8240:
8237:
8231:
8228:
8226:
8223:
8221:
8218:
8216:
8215:Lunar eclipse
8213:
8211:
8208:
8206:
8203:
8201:
8198:
8196:
8195:Eclipse cycle
8193:
8189:
8186:
8184:
8181:
8180:
8179:
8176:
8174:
8173:Allais effect
8171:
8170:
8168:
8164:
8158:
8155:
8153:
8150:
8148:
8145:
8143:
8140:
8138:
8135:
8133:
8130:
8128:
8125:
8124:
8122:
8118:
8112:
8109:
8107:
8104:
8102:
8099:
8097:
8094:
8092:
8089:
8087:
8084:
8082:
8079:
8077:
8074:
8072:
8069:
8067:
8064:
8062:
8059:
8057:
8054:
8052:
8049:
8047:
8044:
8042:
8039:
8037:
8034:
8032:
8029:
8027:
8024:
8022:
8019:
8017:
8014:
8012:
8009:
8007:
8004:
8002:
7999:
7997:
7994:
7992:
7989:
7987:
7984:
7982:
7979:
7977:
7974:
7972:
7969:
7967:
7964:
7962:
7959:
7957:
7954:
7952:
7949:
7947:
7944:
7942:
7939:
7937:
7934:
7932:
7929:
7927:
7924:
7922:
7919:
7917:
7914:
7912:
7909:
7907:
7904:
7902:
7899:
7897:
7894:
7892:
7889:
7887:
7884:
7882:
7879:
7877:
7874:
7872:
7869:
7867:
7864:
7862:
7859:
7857:
7854:
7852:
7849:
7847:
7844:
7842:
7839:
7837:
7834:
7832:
7829:
7827:
7824:
7822:
7816:
7814:
7811:
7809:
7806:
7804:
7801:
7799:
7796:
7794:
7791:
7789:
7786:
7784:
7781:
7779:
7776:
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7769:
7766:
7764:
7761:
7759:
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7749:
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7739:
7736:
7734:
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7709:
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7641:
7639:
7636:
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7631:
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7624:
7621:
7619:
7616:
7614:
7611:
7609:
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7584:
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7554:
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7509:
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7439:
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7323:
7318:
7312:
7309:
7307:
7304:
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7299:
7297:
7294:
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7282:
7279:
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7269:
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7264:
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7244:
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7234:
7232:
7229:
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7224:
7222:
7219:
7217:
7214:
7212:
7209:
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7159:
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7119:
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7039:
7037:
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6859:
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6811:
6809:
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6789:
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6759:
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6709:
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6681:
6679:
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6674:
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6666:
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6659:
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6639:
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6619:
6616:
6614:
6611:
6609:
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6512:
6509:
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6427:
6424:
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6414:
6412:
6409:
6407:
6404:
6402:
6399:
6397:
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6392:
6389:
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6384:
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6379:
6377:
6374:
6372:
6369:
6367:
6364:
6362:
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6347:
6344:
6342:
6339:
6337:
6334:
6332:
6329:
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6324:
6322:
6319:
6317:
6314:
6312:
6309:
6307:
6304:
6302:
6299:
6297:
6294:
6292:
6289:
6287:
6284:
6282:
6279:
6277:
6274:
6272:
6269:
6267:
6264:
6262:
6259:
6257:
6254:
6252:
6249:
6247:
6241:
6239:
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6234:
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6229:
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6224:
6221:
6219:
6216:
6214:
6211:
6209:
6206:
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6201:
6199:
6196:
6194:
6191:
6189:
6186:
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6179:
6176:
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6164:
6161:
6159:
6156:
6154:
6151:
6149:
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6144:
6141:
6139:
6136:
6134:
6131:
6129:
6126:
6124:
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6119:
6116:
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6111:
6109:
6106:
6104:
6101:
6099:
6096:
6094:
6091:
6089:
6086:
6084:
6081:
6079:
6076:
6074:
6071:
6069:
6066:
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6046:
6044:
6041:
6039:
6036:
6034:
6031:
6029:
6026:
6024:
6021:
6019:
6016:
6014:
6011:
6009:
6006:
6004:
6001:
5999:
5996:
5994:
5991:
5989:
5986:
5984:
5981:
5979:
5976:
5974:
5971:
5969:
5966:
5964:
5961:
5959:
5956:
5954:
5951:
5949:
5946:
5944:
5941:
5939:
5936:
5934:
5931:
5929:
5926:
5924:
5921:
5919:
5916:
5914:
5911:
5909:
5906:
5904:
5901:
5899:
5896:
5894:
5891:
5889:
5886:
5884:
5881:
5879:
5876:
5874:
5871:
5869:
5866:
5864:
5861:
5859:
5856:
5854:
5851:
5849:
5846:
5844:
5841:
5839:
5836:
5834:
5831:
5829:
5826:
5824:
5821:
5819:
5816:
5814:
5811:
5809:
5806:
5804:
5801:
5799:
5796:
5794:
5791:
5789:
5786:
5784:
5781:
5779:
5776:
5774:
5771:
5769:
5766:
5764:
5761:
5759:
5756:
5754:
5751:
5749:
5746:
5744:
5741:
5739:
5736:
5734:
5731:
5729:
5726:
5724:
5721:
5719:
5716:
5714:
5711:
5709:
5706:
5704:
5701:
5699:
5696:
5694:
5691:
5689:
5686:
5684:
5681:
5679:
5676:
5674:
5671:
5669:
5666:
5664:
5661:
5659:
5656:
5654:
5651:
5649:
5646:
5644:
5641:
5639:
5636:
5634:
5631:
5629:
5626:
5624:
5621:
5619:
5616:
5614:
5611:
5609:
5606:
5604:
5601:
5599:
5596:
5594:
5591:
5589:
5586:
5584:
5581:
5579:
5576:
5574:
5571:
5569:
5566:
5564:
5561:
5559:
5556:
5555:
5553:
5543:
5538:
5527:
5524:
5521:
5518:
5515:
5512:
5509:
5506:
5505:
5503:
5499:
5493:
5492:United States
5490:
5488:
5485:
5483:
5480:
5478:
5475:
5473:
5470:
5468:
5465:
5463:
5460:
5458:
5457:British Isles
5455:
5453:
5450:
5449:
5447:
5443:
5437:
5434:
5432:
5429:
5427:
5424:
5422:
5419:
5417:
5414:
5412:
5409:
5407:
5404:
5402:
5399:
5397:
5394:
5392:
5389:
5387:
5384:
5382:
5379:
5377:
5374:
5372:
5369:
5367:
5364:
5362:
5359:
5357:
5354:
5352:
5349:
5347:
5344:
5342:
5339:
5337:
5334:
5332:
5329:
5327:
5324:
5322:
5319:
5317:
5314:
5312:
5309:
5307:
5304:
5302:
5299:
5297:
5294:
5292:
5289:
5287:
5284:
5282:
5279:
5277:
5274:
5272:
5269:
5267:
5264:
5262:
5259:
5257:
5254:
5252:
5249:
5247:
5244:
5242:
5239:
5237:
5234:
5232:
5229:
5227:
5224:
5222:
5219:
5217:
5214:
5212:
5209:
5207:
5204:
5202:
5199:
5197:
5194:
5192:
5189:
5187:
5184:
5182:
5179:
5177:
5174:
5172:
5169:
5168:
5166:
5163:
5159:
5155:
5149:
5146:
5142:
5139:
5137:
5134:
5132:
5129:
5127:
5124:
5122:
5119:
5117:
5114:
5112:
5109:
5108:
5106:
5104:
5101:
5099:
5096:
5095:
5093:
5089:
5086:
5084:
5080:
5072:
5069:
5068:
5067:
5064:
5062:
5059:
5057:
5054:
5052:
5049:
5048:
5046:
5042:
5038:
5031:
5026:
5024:
5019:
5017:
5012:
5011:
5008:
5002:
4999:
4997:
4994:
4991:
4988:
4985:
4982:
4981:
4973:
4972:0-943396-81-6
4969:
4965:
4964:Lunar Tetrads
4961:
4959:
4958:0-943396-51-4
4955:
4951:
4947:
4945:
4944:0-943396-35-2
4941:
4937:
4934:
4931:
4928:
4925:
4922:
4919:
4918:
4911:
4907:
4903:
4897:
4893:
4886:
4879:
4873:
4865:
4861:
4857:
4850:
4843:
4835:
4831:
4827:
4820:
4813:
4811:
4809:
4800:
4799:
4789:
4784:
4780:
4776:
4772:
4768:
4761:
4754:
4747:
4743:
4738:
4731:
4725:
4718:
4713:
4706:
4701:
4694:
4689:
4682:
4677:
4667:
4662:
4658:
4654:
4650:
4646:
4639:
4632:
4630:
4628:
4626:
4616:
4614:
4605:
4599:
4591:
4587:
4580:
4578:
4567:
4558:
4549:
4540:
4533:
4529:
4524:
4517:
4513:
4508:
4500:
4494:
4490:
4483:
4477:
4472:
4464:
4457:
4455:
4453:
4451:
4449:
4447:
4445:
4443:
4441:
4439:
4437:
4435:
4433:
4431:
4429:
4427:
4425:
4423:
4421:
4419:
4417:
4415:
4413:
4411:
4409:
4407:
4405:
4403:
4401:
4399:
4397:
4395:
4393:
4391:
4389:
4387:
4385:
4378:
4373:
4371:
4369:
4359:
4355:
4345:
4342:
4341:
4335:
4331:
4329:
4325:
4321:
4315:
4308:
4307:
4306:
4300:
4299:
4298:
4291:
4288:
4285:
4284:
4283:
4274:
4255:
4252:
4246: million
4241:
4237:
4233:
4230:
4227:
4223:
4219:
4215:
4210:
4198:
4194:
4191:
4182:
4178:
4174:
4165:
4164:
4163:
4160:
4157:
4153:
4149:
4129:
4126:
4120:
4116:
4112:
4109:
4106:
4102:
4098:
4094:
4089:
4077:
4073:
4070:
4061:
4057:
4053:
4044:
4043:
4042:
4033:
4029:
4025:
4016:
4008:
4004:
4000:
3998:
3993:
3987:
3978:
3974:
3971:
3967:
3958:
3955:
3952:
3949:
3948:
3947:
3938:
3930:
3926:
3922:
3920:
3916:
3912:
3908:
3900:
3896:
3889:
3888:
3887:
3883:
3875:
3867:
3863:
3860:
3856:
3851:
3844:
3843:
3842:
3840:
3836:
3832:
3822:
3813:
3800:
3797:
3796:
3792:
3789:
3788:
3783:
3781:Accuratissima
3780:
3779:
3774:
3771:
3770:
3765:
3762:
3761:
3756:
3753:
3752:
3747:
3744:
3743:
3739:
3735:
3732:
3731:
3727:
3724:
3723:
3719:
3716:
3715:
3711:
3708:
3707:
3706:
3703:
3695:
3692:
3691:
3686:
3682:
3677:
3673:
3669:
3665:
3661:
3657:
3654:
3653:
3648:
3641:
3638:
3637:
3633:
3629:
3625:
3622:
3621:
3617:
3613:
3609:
3606:
3605:
3601:
3597:
3592:
3589:
3588:
3584:
3581:
3580:
3575:
3572:
3571:
3566:
3563:
3562:
3557:
3553:
3551:
3548:
3547:
3542:
3539:
3538:
3533:
3530:
3529:
3524:
3521:
3520:
3516:
3512:
3509:
3508:
3503:
3500:
3499:
3494:
3490:
3487:
3486:
3482:
3477:
3474:
3473:
3469:
3465:
3463:Mercury cycle
3462:
3461:
3457:
3454:
3453:
3449:
3445:
3441:
3437:
3433:
3429:
3424:
3421:
3420:
3416:
3398:
3396:
3393:
3392:
3387:
3383:
3380:
3379:
3375:
3372:, located at
3371:
3367:
3364:
3363:
3359:
3354:
3351:
3350:
3346:
3322:
3317:
3315:
3312:
3311:
3307:
3304:
3303:
3298:
3295:
3294:
3275:
3272:
3271:Metonic cycle
3269:
3268:
3263:
3259:
3251:
3247:
3245:
3242:
3241:
3237:
3234:
3233:
3228:
3223:
3220:
3219:
3214:
3211:
3210:
3206:
3201:
3199:
3196:
3195:
3180:
3178:
3175:
3174:
3169:
3166:
3165:
3160:
3157:
3156:
3152:
3149:
3148:
3143:
3140:
3139:
3135:
3131:
3130:Arctic Circle
3127:
3124:
3123:
3118:
3116:
3115:Synodic month
3113:
3112:
3108:
3104:
3101:
3097:
3093:
3089:
3084:
3080:
3077:
3076:
3065:
3062:
3059:
3056:
3053:
3050:
3047:
3044:
3041:
3039:
3035:
3031:
3028:
3027:
3023:
3020:
3017:
3014:
3011:
3008:
3005:
3002:
2999:
2997:
2993:
2989:
2986:
2985:
2981:
2978:
2975:
2972:
2969:
2966:
2963:
2960:
2957:
2955:
2951:
2947:
2944:
2943:
2939:
2936:
2933:
2930:
2927:
2924:
2921:
2918:
2915:
2913:
2909:
2905:
2903:accuratissima
2902:
2901:
2897:
2894:
2891:
2888:
2885:
2882:
2879:
2876:
2873:
2871:
2867:
2863:
2860:
2859:
2855:
2852:
2849:
2846:
2843:
2840:
2837:
2834:
2831:
2829:
2825:
2821:
2818:
2817:
2813:
2810:
2807:
2804:
2801:
2798:
2795:
2792:
2789:
2787:
2783:
2779:
2776:
2775:
2771:
2768:
2765:
2762:
2759:
2756:
2753:
2750:
2747:
2745:
2741:
2737:
2734:
2733:
2729:
2726:
2723:
2720:
2717:
2714:
2711:
2708:
2705:
2703:
2699:
2695:
2692:
2691:
2687:
2684:
2681:
2678:
2675:
2672:
2669:
2666:
2663:
2661:
2657:
2653:
2650:
2649:
2645:
2642:
2639:
2636:
2633:
2630:
2627:
2624:
2621:
2619:
2615:
2611:
2608:
2607:
2603:
2600:
2597:
2594:
2591:
2588:
2585:
2582:
2579:
2577:
2573:
2570:
2569:
2565:
2562:
2559:
2556:
2553:
2550:
2547:
2544:
2541:
2539:
2535:
2531:
2528:
2527:
2523:
2520:
2517:
2514:
2511:
2508:
2505:
2502:
2499:
2497:
2493:
2489:
2486:
2485:
2481:
2478:
2475:
2472:
2469:
2466:
2463:
2460:
2457:
2455:
2451:
2447:
2444:
2443:
2439:
2436:
2433:
2430:
2427:
2424:
2421:
2418:
2415:
2413:
2409:
2405:
2402:
2401:
2397:
2394:
2391:
2388:
2385:
2382:
2379:
2376:
2373:
2371:
2367:
2364:
2363:
2359:
2356:
2353:
2350:
2347:
2344:
2341:
2338:
2335:
2333:
2329:
2325:
2322:
2321:
2317:
2314:
2311:
2308:
2305:
2302:
2299:
2296:
2293:
2291:
2287:
2283:
2280:
2279:
2275:
2272:
2269:
2266:
2263:
2260:
2257:
2254:
2251:
2249:
2245:
2241:
2238:
2237:
2233:
2230:
2227:
2224:
2221:
2218:
2215:
2212:
2209:
2207:
2203:
2199:
2196:
2195:
2191:
2188:
2185:
2182:
2179:
2176:
2173:
2170:
2167:
2165:
2161:
2157:
2154:
2153:
2149:
2146:
2143:
2140:
2137:
2134:
2131:
2128:
2125:
2123:
2119:
2115:
2113:
2110:
2109:
2105:
2102:
2099:
2096:
2093:
2090:
2087:
2084:
2081:
2079:
2075:
2071:
2068:
2067:
2063:
2060:
2057:
2054:
2051:
2048:
2045:
2042:
2039:
2037:
2033:
2029:
2026:
2025:
2021:
2018:
2015:
2012:
2009:
2006:
2003:
2000:
1997:
1995:
1991:
1987:
1984:
1983:
1979:
1976:
1973:
1970:
1967:
1964:
1961:
1958:
1955:
1953:
1949:
1945:
1942:
1941:
1937:
1934:
1931:
1928:
1925:
1922:
1919:
1916:
1913:
1911:
1907:
1903:
1900:
1899:
1895:
1892:
1889:
1886:
1883:
1880:
1877:
1874:
1871:
1869:
1865:
1862:
1861:
1857:
1854:
1851:
1848:
1845:
1842:
1839:
1836:
1833:
1831:
1827:
1823:
1820:
1819:
1815:
1812:
1809:
1806:
1803:
1800:
1797:
1794:
1791:
1789:
1785:
1781:
1779:Mercury cycle
1778:
1777:
1773:
1770:
1767:
1764:
1761:
1758:
1755:
1752:
1749:
1747:
1743:
1739:
1736:
1735:
1731:
1728:
1725:
1722:
1719:
1716:
1713:
1710:
1707:
1705:
1701:
1698:
1697:
1693:
1690:
1687:
1684:
1681:
1678:
1675:
1672:
1669:
1667:
1663:
1659:
1657:
1654:
1653:
1649:
1646:
1643:
1640:
1637:
1634:
1631:
1628:
1625:
1623:
1619:
1616:
1613:
1612:
1608:
1605:
1602:
1599:
1596:
1593:
1590:
1587:
1584:
1582:
1569:
1566:
1563:
1562:
1558:
1555:
1552:
1549:
1546:
1543:
1540:
1537:
1534:
1532:
1528:
1526:
1523:
1522:
1518:
1515:
1512:
1509:
1506:
1503:
1500:
1497:
1494:
1492:
1489:
1486:
1482:
1479:
1478:
1474:
1471:
1468:
1465:
1462:
1459:
1456:
1453:
1450:
1448:
1444:
1440:
1437:
1436:
1432:
1429:
1426:
1423:
1420:
1417:
1414:
1411:
1408:
1406:
1402:
1398:
1395:
1394:
1390:
1387:
1384:
1381:
1378:
1375:
1372:
1369:
1366:
1364:
1360:
1356:
1354:
1353:Metonic cycle
1351:
1350:
1346:
1343:
1340:
1337:
1334:
1331:
1328:
1325:
1322:
1320:
1317:
1314:
1310:
1307:
1306:
1302:
1299:
1296:
1293:
1290:
1287:
1284:
1281:
1278:
1276:
1272:
1269:
1267:
1264:
1263:
1259:
1256:
1253:
1250:
1247:
1244:
1241:
1238:
1235:
1233:
1221:
1219:
1216:
1215:
1211:
1208:
1205:
1202:
1199:
1196:
1193:
1190:
1187:
1185:
1181:
1177:
1174:
1173:
1169:
1166:
1163:
1160:
1157:
1154:
1151:
1148:
1145:
1143:
1139:
1135:
1133:
1130:
1129:
1125:
1122:
1119:
1116:
1113:
1110:
1107:
1104:
1101:
1099:
1095:
1091:
1089:
1086:
1085:
1081:
1078:
1075:
1072:
1069:
1066:
1063:
1060:
1057:
1055:
1051:
1047:
1044:
1043:
1039:
1036:
1033:
1030:
1027:
1024:
1021:
1018:
1015:
1013:
1009:
1005:
1002:
1001:
997:
994:
991:
988:
985:
982:
979:
976:
973:
971:
967:
963:
960:
959:
955:
952:
949:
946:
943:
940:
937:
934:
931:
929:
925:
921:
918:
917:
913:
910:
907:
904:
901:
898:
895:
892:
889:
887:
883:
879:
876:
875:
871:
868:
865:
862:
859:
856:
853:
850:
847:
845:
841:
837:
835:
834:synodic month
832:
831:
827:
824:
821:
818:
815:
812:
809:
806:
803:
801:
784:
780:
777:
776:
772:
767:
762:
757:
752:
747:
742:
737:
734:
731:
728:
727:
724:
722:
718:
713:
709:
707:
697:
692:
688:
684:
680:
674:
669:
665:
661:
657:
652:
651:synodic month
647:
644:
640:
638:
633:
631:
627:
623:
619:
615:
611:
606:
579:
560:
547:
533:
532:
531:
529:
520:
517:
514:
511:
510:
509:
507:
503:
499:
495:
485:
483:
479:
475:
471:
467:
461:
457:
455:
451:
444:
434:
431:
427:
423:
419:
415:
414:synodic month
407:
404:
400:
396:
393:
389:
385:
382:
381:
380:
371:
369:
365:
361:
358:, and to the
357:
353:
349:
348:synodic month
341:
338:
334:
330:
327:
323:
319:
316:
315:
314:
305:
302:
298:
294:
290:
284:
274:
271:
266:
262:
260:
259:sidereal year
246:
228:
224:
210:
209:synodic month
206:
201:
198:
196:
187:
178:
176:
172:
171:orbital nodes
168:
163:
161:
155:
153:
149:
145:
141:
136:
134:
130:
129:Earth's orbit
126:
121:
119:
115:
111:
107:
106:lunar eclipse
103:
99:
95:
94:solar eclipse
91:
87:
83:
79:
75:
71:
64:
63:solar eclipse
59:
50:
48:
44:
40:
33:
28:
19:
10174:
10170:Danjon scale
8396:saros series
8194:
8183:Solar viewer
8120:Other bodies
7728:31 Jul. 2000
7331:next partial
6551:next annular
5158:Saros series
5056:Shadow bands
4963:
4949:
4895:
4885:
4872:
4855:
4842:
4825:
4797:
4770:
4766:
4753:
4737:
4724:
4712:
4700:
4688:
4676:
4648:
4644:
4598:cite journal
4589:
4566:
4557:
4548:
4539:
4523:
4507:
4488:
4482:
4471:
4358:
4332:
4324:Dynamic time
4316:
4312:
4304:
4295:
4280:
4271:
4161:
4145:
4039:
4026:
4022:
4001:
3988:
3984:
3962:
3944:
3935:
3923:
3904:
3893:
3884:
3880:
3859:Saros series
3852:
3848:
3831:saros series
3828:
3790:Mackay cycle
3701:
3700:
3681:eccentricity
3675:
3628:Julian years
3623:Basic period
3531:Utting cycle
3483:(see below).
3386:Julian years
3370:Aubrey holes
3365:Aubrey cycle
3321:Julian years
3042:1,209,011.84
3037:
3033:
3000:1,076,773.86
2995:
2991:
2953:
2949:
2945:Mackay cycle
2911:
2907:
2869:
2865:
2827:
2823:
2785:
2781:
2743:
2739:
2701:
2697:
2659:
2655:
2617:
2613:
2575:
2537:
2533:
2495:
2491:
2453:
2449:
2411:
2407:
2369:
2365:Basic period
2331:
2327:
2289:
2285:
2247:
2243:
2205:
2201:
2163:
2159:
2121:
2117:
2077:
2073:
2035:
2031:
2027:Utting cycle
1993:
1989:
1951:
1947:
1909:
1905:
1867:
1829:
1825:
1787:
1783:
1745:
1741:
1703:
1665:
1661:
1621:
1617:
1580:
1567:
1564:Aubrey cycle
1530:
1490:
1484:
1446:
1442:
1404:
1400:
1362:
1358:
1318:
1312:
1274:
1270:
1231:
1183:
1179:
1141:
1137:
1097:
1093:
1053:
1049:
1011:
1007:
969:
965:
927:
923:
885:
881:
843:
839:
799:
782:
720:
719:) and inex (
716:
714:
710:
705:
703:
695:
672:
645:
641:
634:
607:
604:
524:
505:
491:
476:, Moon, and
470:Moon's orbit
462:
458:
446:
411:
377:
345:
311:
288:
286:
267:
263:
202:
199:
192:
164:
156:
150:at the mean
143:
137:
125:Moon's orbit
122:
118:lunar phases
68:
46:
42:
37:
10150:2070 Apr 25
10145:2053 Aug 29
10137:2006 Mar 14
10132:1999 Jan 31
10127:1988 Mar 03
10122:1981 Jan 20
10117:1963 Jan 09
10094:2060 Nov 08
10089:2053 Mar 04
10084:2052 Apr 14
10079:2049 Nov 09
10074:2049 Jun 15
10069:2049 May 17
10064:2048 Dec 20
10059:2045 Aug 27
10054:2045 Mar 03
10049:2042 Oct 28
10044:2042 Apr 05
10039:2038 Dec 11
10034:2038 Jul 16
10029:2038 Jun 17
10024:2038 Jan 21
10019:2035 Feb 22
10014:2034 Apr 03
10009:2031 Oct 30
10004:2031 Jun 05
9999:2031 May 07
9994:2030 Dec 09
9989:2027 Aug 17
9984:2027 Jul 18
9979:2027 Feb 20
9971:2024 Mar 25
9966:2023 May 05
9961:2020 Nov 30
9956:2020 Jul 05
9951:2020 Jun 05
9946:2020 Jan 10
9941:2017 Feb 11
9936:2016 Sep 16
9931:2016 Aug 18
9926:2016 Mar 23
9921:2013 Oct 18
9916:2013 May 25
9911:2012 Nov 28
9906:2009 Aug 06
9901:2009 Jul 07
9896:2009 Feb 09
9891:2005 Apr 24
9886:2002 Nov 20
9881:2002 Jun 24
9876:2002 May 26
9871:2001 Dec 30
9866:1998 Sep 06
9861:1998 Aug 08
9856:1998 Mar 13
9851:1995 Oct 08
9846:1994 Nov 18
9841:1991 Jul 26
9836:1991 Jun 27
9831:1991 Jan 30
9826:1987 Oct 07
9821:1987 Apr 14
9816:1984 Nov 08
9811:1984 Jun 13
9806:1984 May 15
9801:1983 Dec 20
9796:1980 Aug 26
9791:1980 Jul 27
9786:1980 Mar 01
9781:1977 Sep 27
9776:1976 Nov 06
9771:1973 Jul 15
9766:1973 Jun 15
9761:1973 Jan 18
9756:1969 Sep 25
9751:1969 Aug 27
9746:1969 Apr 02
9741:1966 Oct 29
9736:1966 May 04
9731:1965 Dec 08
9726:1962 Aug 15
9721:1962 Jul 17
9716:1962 Feb 19
9711:1959 Sep 17
9706:1958 Oct 27
9701:1958 Apr 04
9696:1955 Jun 05
9691:1955 Jan 08
9686:1951 Sep 15
9681:1951 Aug 17
9676:1951 Mar 23
9671:1951 Feb 21
9666:16 Oct 1940
9661:22 Apr 1940
9656:23 Mar 1940
8362:Modern era
7723:1 Jul. 2000
5472:Philippines
5107:Modern era
5103:Middle Ages
3763:Megalosaros
3758:Gregorian).
3607:Hipparchian
3564:Square year
2819:Megalosaros
2323:Hipparchian
2155:Square year
763:Anomalistic
748:Anomalistic
528:beat period
466:inclination
277:Periodicity
181:Recurrences
140:inclination
90:conjunction
18:Saros Cycle
10236:Categories
10099:2107 May 7
8345:By century
5501:Historical
5445:Visibility
4773:(3): 905.
4744:. Data in
4350:References
4156:super-moon
4019:(344.979).
3754:Heliotrope
3749:character.
3616:Hipparchus
3573:Gregoriana
3556:Hipparchus
3374:Stonehenge
3212:Hibbardina
3150:Lunar year
3125:Pentalunex
3024:alternate
2982:alternate
2940:alternate
2916:672,441.04
2874:665,855.72
2832:659,270.40
2790:652,685.07
2777:heliotrope
2748:646,099.75
2730:alternate
2706:614,383.90
2688:alternate
2664:607,798.58
2646:alternate
2622:601,213.26
2580:549,741.44
2542:332,750.68
2524:alternate
2500:214,037.71
2458:206,241.63
2416:203,465.76
2374:190,295.11
2336:161,177.95
2294:142,809.92
2252:142,455.56
2210:135,870.24
2197:Gregoriana
2168:133,448.73
2150:alternate
2126:126,007.02
2106:alternate
2082:122,876.78
2040:112,304.83
1998:109,528.95
1980:alternate
1956:101,732.88
1938:alternate
1858:alternate
1732:alternate
1650:alternate
1609:alternate
1519:alternate
1433:alternate
1303:alternate
1212:alternate
1175:Hibbardina
1170:alternate
1082:alternate
961:lunar year
956:alternate
914:alternate
877:pentalunex
828:alternate
281:See also:
102:opposition
8111:Oct. 2098
8106:Sep. 2098
8101:Apr. 2098
8096:Dec. 2094
8091:Jul. 2094
8086:Jun. 2094
8071:Oct. 2087
8066:Jun. 2087
8046:Aug. 2083
8041:Jul. 2083
8036:Feb. 2083
8031:Nov. 2076
8026:Jul. 2076
8021:Jun. 2076
8006:Oct. 2069
7996:Apr. 2069
7986:Dec. 2065
7981:Aug. 2065
7976:Jul. 2065
7971:Feb. 2065
7966:Sep. 2062
7961:Mar. 2062
7956:Nov. 2058
7951:Jun. 2058
7936:Sep. 2054
7931:Aug. 2054
7926:Mar. 2054
7921:Oct. 2051
7916:Apr. 2051
7906:Dec. 2047
7901:Jul. 2047
7896:Jun. 2047
7891:Jan. 2047
7886:Nov. 2040
7871:Aug. 2036
7866:Jul. 2036
7861:Feb. 2036
7846:Dec. 2029
7841:Jul. 2029
7836:Jun. 2029
7831:Jan. 2029
7826:Sep. 2025
7821:Mar. 2025
7813:Oct. 2022
7808:Apr. 2022
7803:Jan. 2019
7798:Aug. 2018
7793:Jul. 2018
7788:Feb. 2018
7783:Sep. 2015
7778:Oct. 2014
7773:Nov. 2011
7768:Jul. 2011
7763:Jun. 2011
7758:Jan. 2011
7753:Sep. 2007
7748:Mar. 2007
7743:Oct. 2004
7738:Apr. 2004
7733:Dec. 2000
7718:Feb. 2000
7713:Sep. 1997
7708:Oct. 1996
7703:Apr. 1996
7698:Nov. 1993
7688:Dec. 1992
7683:Aug. 1989
7678:Mar. 1989
7673:Apr. 1986
7663:Dec. 1982
7658:Jul. 1982
7653:Jun. 1982
7648:Jan. 1982
7643:Oct. 1978
7638:Apr. 1978
7633:Nov. 1975
7623:Dec. 1974
7618:Aug. 1971
7613:Jul. 1971
7608:Feb. 1971
7603:Mar. 1968
7593:Dec. 1964
7588:Jul. 1964
7583:Jun. 1964
7578:Jan. 1964
7573:Sep. 1960
7568:Mar. 1960
7563:Dec. 1956
7558:Aug. 1953
7553:Jul. 1953
7548:Feb. 1953
7543:Oct. 1949
7538:Apr. 1949
7533:Nov. 1946
7528:Jun. 1946
7518:Jan. 1946
7513:Sep. 1942
7508:Aug. 1942
7503:Mar. 1942
7498:Nov. 1938
7493:Jul. 1935
7488:Jun. 1935
7483:Feb. 1935
7478:Jan. 1935
7473:Oct. 1931
7468:Sep. 1931
7463:Apr. 1931
7458:Nov. 1928
7453:Jun. 1928
7448:Dec. 1927
7443:Aug. 1924
7438:Jul. 1924
7433:Mar. 1924
7428:Nov. 1920
7418:Jul. 1917
7413:Jun. 1917
7408:Jan. 1917
7403:Dec. 1916
7398:Sep. 1913
7393:Aug. 1913
7388:Apr. 1913
7383:Nov. 1910
7378:Dec. 1909
7373:Aug. 1906
7368:Jul. 1906
7363:Feb. 1906
7358:Oct. 1902
7348:Apr. 1902
7343:Nov. 1873
7338:Jan. 1639
7281:Aug. 2092
7276:Feb. 2092
7261:Dec. 2085
7256:Jun. 2085
7216:Jul. 2074
7211:Jan. 2074
7156:Jul. 2056
7151:Jan. 2056
7091:Jul. 2038
7086:Jan. 2038
6863:Dec. 1973
6858:Jan. 1973
6843:Sep. 1969
6838:Mar. 1969
6788:Dec. 1954
6783:Jan. 1954
6773:Sep. 1951
6768:Mar. 1951
6743:Jul. 1944
6698:Aug. 1933
6693:Feb. 1933
6628:Aug. 1915
6623:Feb. 1915
6366:Dec. 2057
6361:Jan. 2057
5943:Jan. 1944
5893:Oct. 1930
5888:Apr. 1930
5823:Oct. 1912
5818:Apr. 1912
5798:Dec. 1908
5793:Jan. 1908
5743:Dec. 1889
5738:Jan. 1889
5510:(1312 BC)
5452:Australia
5098:Antiquity
4793:See also
4728:Based on
4192:−
3798:Horologia
3772:Immobilis
3709:Cartouche
3582:Hexdodeka
3577:calendar.
3352:Exeligmos
3325:28
3262:Histogram
3230:penumbra.
3205:tzolk'ins
3198:Tzolkinex
3078:Fortnight
3051:43877.031
3048:44429.003
3029:Horologia
3009:39077.897
3006:39569.496
2987:Selenid 2
2967:31310.116
2964:31703.996
2958:862736.15
2925:24403.993
2922:24710.994
2883:24165.001
2880:24468.996
2861:immobilis
2841:23926.009
2838:24226.997
2799:23687.016
2796:23984.998
2757:23448.024
2754:23743.000
2715:22297.004
2712:22577.499
2693:Selenid 1
2673:22058.012
2670:22335.501
2631:21819.019
2628:22093.502
2589:19951.022
2586:20202.006
2571:cartouche
2551:12076.070
2548:12227.987
2425:7,384.107
2239:hexdodeka
1914:71,227.78
1872:63,431.70
1834:51,471.82
1792:40,899.87
1750:35,702.48
1708:31,715.85
1670:27,758.75
1626:23,742.59
1585:20,449.93
1535:19,755.96
1525:exeligmos
1495:10,571.95
1132:tzolkinex
778:fortnight
679:tzolkinex
656:tzolkinex
618:full moon
580:−
561:×
498:ephemeris
270:lunations
98:full moon
10242:Eclipses
10213:Category
9626:2170 May
9621:2123 Jun
9616:2094 Jun
9611:2090 Sep
9606:2087 May
9601:2084 Jan
9596:2083 Jul
9591:2076 Jun
9586:2072 Aug
9581:2069 May
9576:2065 Jul
9571:2058 Jun
9566:2055 Feb
9561:2054 Aug
9556:2054 Feb
9551:2051 Oct
9546:2051 Apr
9541:2050 Oct
9536:2050 May
9531:2048 Jan
9526:2047 Jul
9521:2047 Jan
9516:2044 Sep
9511:2044 Mar
9506:2043 Sep
9501:2043 Mar
9496:2040 Nov
9491:2040 May
9486:2037 Jan
9481:2036 Aug
9476:2036 Feb
9471:2033 Oct
9466:2033 Apr
9461:2032 Oct
9456:2032 Apr
9451:2029 Dec
9446:2029 Jun
9441:2028 Dec
9436:2026 Mar
9431:2025 Sep
9426:2025 Mar
9418:2022 Nov
9413:2022 May
9408:2021 May
9403:2019 Jan
9398:2018 Jul
9393:2018 Jan
9388:2015 Sep
9383:2015 Apr
9378:2014 Oct
9373:2014 Apr
9368:2011 Dec
9363:2011 Jun
9358:2010 Dec
9353:2008 Feb
9348:2007 Aug
9343:2007 Mar
9338:2004 Oct
9333:2004 May
9328:2003 Nov
9323:2003 May
9318:2001 Jan
9313:2000 Jul
9308:2000 Jan
9303:1997 Sep
9298:1996 Sep
9293:1996 Apr
9288:1993 Nov
9283:1993 Jun
9278:1992 Dec
9273:1990 Feb
9268:1989 Aug
9263:1989 Feb
9258:1986 Oct
9253:1986 Apr
9248:1985 Oct
9243:1985 May
9238:1982 Dec
9233:1982 Jul
9228:1982 Jan
9223:1979 Sep
9218:1978 Sep
9213:1978 Mar
9208:1975 Nov
9203:1975 May
9198:1974 Nov
9193:1972 Jan
9188:1971 Aug
9183:1971 Feb
9178:1968 Oct
9173:1968 Apr
9168:1967 Oct
9163:1967 Apr
9158:1964 Dec
9153:1964 Jun
9148:1963 Dec
9143:1960 Sep
9138:1960 Mar
9133:1957 Nov
9128:1957 May
9123:1956 Nov
9118:1954 Jan
9113:1953 Jul
9108:1953 Jan
9103:1950 Sep
9098:1950 Apr
9093:1920 May
9088:1913 Sep
9083:1910 May
9078:1504 Mar
9055:2099 Apr
9050:2075 Jun
9045:2055 Aug
9040:2052 Oct
9035:2048 Jun
9030:2046 Jul
9025:2046 Jan
9020:2041 Nov
9015:2041 May
9010:2039 Nov
9005:2039 Jun
9000:2037 Jul
8995:2035 Aug
8990:2034 Sep
8985:2030 Jun
8980:2028 Jul
8975:2028 Jan
8970:2026 Aug
8962:2024 Sep
8957:2023 Oct
8952:2021 Nov
8947:2019 Jul
8942:2017 Aug
8937:2013 Apr
8932:2012 Jun
8927:2010 Jun
8922:2009 Dec
8917:2008 Aug
8912:2006 Sep
8907:2005 Oct
8902:2001 Jul
8897:1999 Jul
8892:1997 Mar
8887:1995 Apr
8882:1994 May
8877:1992 Jun
8872:1991 Dec
8867:1990 Aug
8862:1988 Aug
8857:1983 Jun
8852:1981 Jul
8847:1979 Mar
8842:1977 Apr
8837:1976 May
8832:1974 Jun
8827:1973 Dec
8822:1972 Jul
8817:1970 Aug
8812:1970 Feb
8807:1965 Jun
8802:1963 Jul
8797:1961 Aug
8792:1961 Mar
8787:1959 Mar
8782:1958 May
8777:1956 May
8772:1955 Nov
8767:1954 Jul
8762:1952 Aug
8757:1952 Feb
8752:1916 Jul
8747:1914 Mar
8742:1903 Apr
8272:Category
8061:May 2087
8001:May 2069
7946:May 2058
7881:May 2040
7693:May 1993
7668:May 1985
7628:May 1975
7598:May 1967
7523:May 1946
7423:May 1920
7353:May 1902
5528:(632 AD)
5522:(585 BC)
5516:(763 BC)
5044:Features
4338:See also
3725:hybridia
3655:Tetradia
3612:Almagest
3358:Almagest
3347:in 1951.
3250:Almagest
3141:Semester
3120:eclipse.
3100:evection
3060:3310.007
3057:3310.094
3054:3488.003
3018:2947.968
3015:2948.046
3012:3106.496
2976:2361.981
2973:2362.043
2970:2488.996
2934:1840.995
2931:1841.043
2928:1939.994
2892:1822.966
2889:1823.014
2886:1920.996
2850:1804.936
2847:1804.984
2844:1901.997
2808:1786.907
2805:1786.954
2802:1882.998
2766:1768.878
2763:1768.925
2760:1864.000
2724:1682.047
2721:1682.091
2718:1772.499
2682:1664.018
2679:1664.062
2676:1753.501
2651:hybridia
2640:1645.989
2637:1646.032
2634:1734.502
2598:1505.070
2595:1505.110
2592:1586.006
2509:7767.781
2506:7865.499
2467:7484.849
2464:7579.008
2422:7476.999
2383:6906.123
2380:6993.002
2345:5849.413
2342:5922.999
2303:5182.807
2300:5248.007
2261:5169.947
2258:5234.985
2219:4930.955
2216:4992.986
2177:4843.074
2174:4904.000
2135:4573.002
2132:4630.531
2091:4459.401
2088:4515.500
2049:4075.727
2046:4127.000
2007:3974.986
2004:4024.991
1965:3692.054
1962:3738.500
1923:2584.973
1920:2617.492
1881:2302.041
1878:2331.001
1843:1867.997
1840:1891.496
1801:1484.323
1798:1502.996
1759:1295.702
1756:1312.002
1717:1151.021
1714:1165.500
1679:1007.411
1676:1020.084
1451:9,361.20
1409:9,184.01
1367:6,939.69
1323:6,585.32
1279:3,986.63
1236:3,292.66
1188:3,277.90
1146:2,598.69
1102:1,387.94
1058:1,210.75
1016:1,033.57
919:semester
743:Draconic
626:ecliptic
614:new moon
133:ecliptic
86:new moon
76:and the
70:Eclipses
39:Eclipses
10163:Related
9649:Partial
8377:Future
8166:Related
8142:Neptune
8137:Jupiter
5487:Ukraine
4860:Bibcode
4830:Bibcode
4775:Bibcode
4653:Bibcode
3907:tetrads
3776:closer.
3745:Proxima
3733:Selenid
3639:Chalepe
3540:Selebit
3496:triads.
3475:Tritrix
3468:Mercury
3408:⁄
3340:
3296:Semanex
3285:⁄
3192:active.
3186:⁄
2735:Proxima
2560:910.998
2557:911.022
2554:959.987
2518:585.988
2515:586.003
2512:617.499
2476:564.644
2473:564.659
2470:595.008
2434:557.044
2431:557.059
2428:586.999
2403:Chalepe
2392:520.986
2389:521.000
2386:549.002
2354:441.270
2351:441.281
2348:464.999
2312:390.982
2309:390.992
2306:412.007
2270:390.012
2267:390.022
2264:410.985
2228:371.983
2225:371.992
2222:391.986
2186:365.353
2183:365.363
2180:385.000
2144:344.979
2141:344.988
2138:363.531
2100:336.409
2097:336.418
2094:354.500
2069:selebit
2058:307.466
2055:307.474
2052:324.000
2016:299.866
2013:299.874
2010:315.991
1974:278.522
1971:278.529
1968:293.500
1932:195.006
1929:195.011
1926:205.492
1890:173.662
1887:173.667
1884:183.001
1852:140.918
1849:140.922
1846:148.496
1821:tritrix
1810:111.975
1807:111.978
1804:117.996
1762:103.002
1635:861.658
1632:872.497
1594:742.162
1591:751.498
1575:⁄
1544:716.976
1541:725.996
1504:383.674
1501:388.500
1460:339.733
1457:344.007
1418:333.303
1415:337.496
1396:semanex
1376:251.853
1373:255.021
1332:238.992
1329:241.999
1288:144.681
1285:146.501
1245:119.496
1242:120.999
1226:⁄
1197:118.960
1194:120.457
794:⁄
770:seasons
768:Eclipse
753:Eclipse
738:Synodic
732:Formula
468:of the
388:perigee
322:perigee
252:⁄
238:⁄
223:precess
216:⁄
160:perigee
8356:by era
8157:Uranus
8152:Saturn
5482:Turkey
5477:Russia
5467:Israel
5148:Future
5091:By era
4970:
4956:
4942:
4592:: 311.
4495:
3992:syzygy
3660:tetrad
3501:Trihex
3381:Unidos
3300:nodes.
3235:Tritos
3167:Hepton
3083:syzygy
1901:trihex
1768:97.745
1765:97.748
1726:86.831
1723:86.833
1720:91.500
1688:75.997
1685:75.999
1682:80.084
1644:65.002
1641:65.004
1638:68.497
1614:unidos
1603:55.987
1600:55.989
1597:58.998
1553:54.087
1550:54.089
1547:56.996
1513:28.944
1510:28.944
1507:30.500
1469:25.629
1466:25.630
1463:27.007
1427:25.144
1424:25.145
1421:26.496
1385:18.999
1382:19.000
1379:20.021
1341:18.029
1338:18.030
1335:18.999
1297:10.915
1294:10.915
1291:11.501
1266:tritos
1155:94.311
1152:95.497
1111:50.371
1108:51.004
1067:43.940
1064:44.493
1045:hepton
1025:37.510
1022:37.982
983:12.861
980:13.022
974:354.37
932:177.18
890:147.65
758:Julian
750:months
745:months
740:months
683:tritos
660:tritos
610:syzygy
494:months
482:syzygy
392:apogee
326:apogee
175:syzygy
110:syzygy
10190:Gamma
10109:Total
8147:Pluto
5462:China
4852:(PDF)
4822:(PDF)
4763:(PDF)
4641:(PDF)
4571:89/41
4268:years
4256:18.60
4228:18.60
4142:years
4130:5.997
4107:18.60
3970:gamma
3966:J2000
3911:gamma
3697:1935.
3685:orbit
3535:1827.
3422:Triad
3291:days.
3244:Saros
3227:gamma
3177:Octon
3158:Hexon
3073:Notes
3066:same
3045:40941
3003:36463
2961:29215
2919:22771
2898:same
2877:22548
2856:same
2835:22325
2814:same
2793:22102
2772:same
2751:21879
2709:20805
2667:20582
2625:20359
2604:same
2583:18616
2566:same
2545:11268
2482:same
2440:same
2398:same
2360:same
2318:same
2276:same
2234:same
2192:same
2064:same
2022:same
1896:same
1816:same
1774:same
1699:triad
1694:same
1588:692.5
1559:same
1475:same
1391:same
1347:same
1309:saros
1260:same
1254:9.015
1251:9.015
1248:9.499
1239:111.5
1206:8.974
1203:8.974
1200:9.457
1164:7.115
1161:7.115
1158:7.497
1126:same
1120:3.800
1117:3.800
1114:4.004
1088:octon
1076:3.315
1073:3.315
1070:3.493
1040:same
1034:2.830
1031:2.830
1028:2.982
1003:hexon
998:same
992:0.970
989:0.970
986:1.022
950:0.485
947:0.485
944:0.511
941:6.430
938:6.511
911:0.852
908:0.404
905:0.404
902:0.426
899:5.359
896:5.426
872:same
866:0.081
863:0.081
860:0.085
857:1.072
854:1.085
848:29.53
825:0.086
822:0.040
819:0.040
816:0.043
813:0.536
810:0.543
804:14.77
773:Node
765:years
760:years
755:years
729:Cycle
687:saros
664:saros
502:epoch
478:Earth
430:Saros
426:Gamma
368:Gamma
364:saros
301:Earth
138:This
114:Greek
96:. At
74:Earth
8381:22nd
8371:21st
8366:20th
8132:Moon
8127:Mars
8081:2091
8076:2090
8056:2086
8051:2084
8016:2073
8011:2072
7991:2068
7941:2055
7911:2050
7876:2037
7856:2033
7851:2032
7311:2100
7306:2099
7301:2097
7296:2096
7291:2095
7286:2093
7271:2089
7266:2088
7251:2084
7246:2082
7241:2081
7236:2079
7231:2078
7226:2077
7221:2075
7206:2071
7201:2070
7196:2067
7191:2066
7186:2064
7181:2063
7176:2061
7171:2060
7166:2059
7161:2057
7146:2053
7141:2052
7136:2049
7131:2048
7126:2046
7121:2045
7116:2044
7111:2043
7106:2042
7101:2041
7096:2039
7081:2036
7076:2035
7071:2034
7066:2032
7061:2031
7056:2030
7051:2028
7046:2027
7041:2026
7036:2024
7028:2023
7023:2021
7018:2020
7013:2019
7008:2017
7003:2016
6998:2014
6993:2013
6988:2012
6983:2010
6978:2009
6973:2008
6968:2006
6963:2005
6958:2003
6953:2002
6948:2001
6943:1999
6938:1998
6933:1995
6928:1994
6923:1992
6918:1991
6913:1990
6908:1988
6903:1987
6898:1984
6893:1983
6888:1981
6883:1980
6878:1979
6873:1977
6868:1976
6853:1972
6848:1970
6833:1966
6828:1965
6823:1963
6818:1962
6813:1961
6808:1959
6803:1958
6798:1957
6793:1955
6778:1952
6763:1950
6758:1948
6753:1947
6748:1945
6738:1943
6733:1941
6728:1940
6723:1939
6718:1937
6713:1936
6708:1935
6703:1934
6688:1932
6683:1929
6678:1927
6673:1926
6668:1925
6663:1923
6658:1922
6653:1921
6648:1919
6643:1918
6638:1917
6633:1916
6618:1914
6613:1911
6608:1908
6603:1907
6598:1905
6593:1904
6588:1903
6583:1901
6578:1900
6573:1889
6568:1879
6563:1854
6558:1820
6531:2186
6526:2100
6521:2099
6516:2097
6511:2096
6506:2095
6501:2094
6496:2093
6491:2091
6486:2090
6481:2089
6476:2088
6471:2086
6466:2084
6461:2082
6456:2081
6451:2079
6446:2078
6441:2077
6436:2076
6431:2075
6426:2073
6421:2072
6416:2071
6411:2070
6406:2068
6401:2067
6396:2066
6391:2064
6386:2063
6381:2061
6376:2060
6371:2059
6356:2055
6351:2053
6346:2052
6341:2050
6336:2049
6331:2048
6326:2046
6321:2045
6316:2044
6311:2043
6306:2042
6301:2041
6296:2039
6291:2038
6286:2037
6281:2035
6276:2034
6271:2033
6266:2031
6261:2030
6256:2028
6251:2027
6246:2026
6238:2024
6233:2023
6228:2021
6223:2020
6218:2019
6213:2017
6208:2016
6203:2015
6198:2013
6193:2012
6188:2010
6183:2009
6178:2008
6173:2006
6168:2005
6163:2003
6158:2002
6153:2001
6148:1999
6143:1998
6138:1997
6133:1995
6128:1994
6123:1992
6118:1991
6113:1990
6108:1988
6103:1987
6098:1986
6093:1985
6088:1984
6083:1983
6078:1981
6073:1980
6068:1979
6063:1977
6058:1976
6053:1974
6048:1973
6043:1972
6038:1970
6033:1968
6028:1967
6023:1966
6018:1965
6013:1963
6008:1962
6003:1961
5998:1959
5993:1958
5988:1957
5983:1956
5978:1955
5973:1954
5968:1952
5963:1950
5958:1948
5953:1947
5948:1945
5938:1943
5933:1941
5928:1940
5923:1939
5918:1938
5913:1937
5908:1936
5903:1934
5898:1932
5883:1929
5878:1928
5873:1927
5868:1926
5863:1925
5858:1923
5853:1922
5848:1921
5843:1919
5838:1918
5833:1916
5828:1914
5813:1911
5808:1910
5803:1909
5788:1907
5783:1905
5778:1904
5773:1903
5768:1901
5763:1900
5758:1898
5753:1896
5748:1893
5733:1887
5728:1886
5723:1885
5718:1883
5713:1882
5708:1878
5703:1875
5698:1874
5693:1871
5688:1870
5683:1869
5678:1868
5673:1867
5668:1865
5663:1860
5658:1858
5653:1857
5648:1853
5643:1851
5638:1842
5633:1824
5628:1816
5623:1806
5618:1780
5613:1778
5608:1766
5603:1724
5598:1715
5593:1706
5588:1673
5583:1654
5578:1652
5573:1598
5568:1560
5563:1185
5558:1133
5162:list
5141:22nd
5136:21st
5131:20th
5126:19th
5121:18th
5116:17th
5111:16th
4968:ISBN
4954:ISBN
4940:ISBN
4900:The
4604:link
4530:and
4514:and
4493:ISBN
4121:8.85
3835:inex
3833:and
3446:and
3314:Inex
3305:Thix
3063:6976
3021:6213
2994:+ 11
2979:4978
2937:3880
2895:3842
2853:3804
2811:3766
2769:3728
2727:3545
2685:3507
2643:3469
2601:3172
2563:1920
2536:+ 12
2521:1235
2503:7248
2479:1190
2461:6984
2437:1174
2419:6890
2395:1098
2377:6444
2339:5458
2297:4836
2255:4824
2246:+ 12
2213:4601
2204:+ 11
2171:4519
2129:4267
2120:− 21
2085:4161
2043:3803
2001:3709
1959:3445
1917:2412
1875:2148
1837:1743
1795:1385
1753:1209
1711:1074
1664:− 60
1481:inex
1438:thix
1361:− 15
1182:− 19
968:− 16
884:− 33
869:0.17
842:− 61
735:Days
691:inex
668:inex
622:node
506:e.g.
420:and
354:and
287:The
144:mean
78:Moon
8719:163
8714:162
8709:161
8704:160
8699:159
8694:158
8689:157
8684:156
8679:155
8674:154
8669:153
8664:152
8659:151
8654:150
8649:149
8644:148
8639:147
8634:146
8629:145
8624:144
8619:143
8614:142
8609:141
8604:140
8599:139
8594:138
8589:137
8584:136
8579:135
8574:134
8569:133
8564:132
8559:131
8554:130
8549:129
8544:128
8539:127
8534:126
8529:125
8524:124
8519:123
8514:122
8509:121
8504:120
8499:119
8494:118
8489:117
8484:116
8479:115
8474:114
8469:113
8464:112
8459:111
8454:110
8449:109
8444:108
8439:107
8434:106
8429:105
8424:104
8419:103
8414:102
8409:101
8404:100
8394:by
5436:162
5431:161
5426:160
5421:159
5416:158
5411:157
5406:156
5401:155
5396:154
5391:153
5386:152
5381:151
5376:150
5371:149
5366:148
5361:147
5356:146
5351:145
5346:144
5341:143
5336:142
5331:141
5326:140
5321:139
5316:138
5311:137
5306:136
5301:135
5296:134
5291:133
5286:132
5281:131
5276:130
5271:129
5266:128
5261:127
5256:126
5251:125
5246:124
5241:123
5236:122
5231:121
5226:120
5221:119
5216:118
5211:117
5206:116
5201:115
5196:114
5191:113
5186:112
5181:111
5176:110
5171:109
4783:doi
4661:doi
4330:).
3674:'s
3448:145
3444:142
3440:139
3436:136
3432:133
3428:130
3401:365
3278:365
3036:+ 7
3032:110
2952:+ 9
2910:+ 9
2868:+ 8
2826:+ 7
2784:+ 6
2742:+ 5
2700:+ 5
2658:+ 4
2616:+ 3
2494:+ 2
2452:− 4
2410:+ 2
2357:930
2330:+ 2
2315:824
2288:- 4
2273:822
2231:784
2189:770
2147:727
2103:709
2061:648
2019:632
1992:+ 7
1977:587
1935:411
1908:+ 6
1893:366
1855:297
1828:+ 3
1813:236
1786:+ 3
1771:206
1744:- 1
1729:183
1691:160
1673:940
1647:137
1629:804
1620:+ 2
1606:118
1556:114
1538:669
1498:358
1454:317
1445:- 5
1412:311
1370:235
1326:223
1282:135
1191:111
1096:− 3
1052:− 3
1010:- 8
926:− 8
807:0.5
706:cf.
616:or
474:Sun
401:or
390:or
335:or
324:or
82:Sun
10238::
4894:.
4880:).
4858:.
4854:.
4828:.
4824:.
4807:^
4781:.
4769:.
4765:.
4659:.
4647:.
4643:.
4624:^
4612:^
4600:}}
4596:{{
4588:.
4576:^
4383:^
4367:^
4320:ΔT
4242:41
3662:.
3630:,
3442:,
3438:,
3434:,
3430:,
3337:18
3331:17
2990:95
2948:76
2906:58
2864:58
2822:58
2780:58
2738:58
2696:55
2654:55
2612:55
2574:52
2532:24
2490:19
2448:22
2406:18
2368:18
2326:14
2284:12
2162:+
2158:12
2116:25
2076:+
2072:11
2034:+
2030:10
1950:+
1660:40
1570:+
1516:61
1472:54
1430:53
1403:-
1388:40
1357:10
1344:38
1300:23
1273:−
1257:19
1209:19
1178:31
1167:15
1149:88
1140:−
1105:47
1061:41
1019:35
1006:13
977:12
964:10
880:53
838:38
787:30
785:−
781:19
585:DM
575:SM
566:DM
556:SM
543:EY
416:,
366:.
350:,
254:20
218:13
120:.
49:.
10218:→
10142:→
9976:→
9423:→
8967:→
8306:e
8299:t
8292:v
7818:→
7329:→
7033:→
6549:→
6243:→
5549:→
5164:)
5160:(
5029:e
5022:t
5015:v
4898:.
4866:.
4862::
4836:.
4832::
4801:.
4791:.
4785::
4777::
4771:6
4748:.
4732:.
4719:,
4707:,
4695:,
4683:,
4669:.
4663::
4655::
4649:6
4606:)
4501:.
4253:=
4238:/
4234:1
4231:+
4224:/
4220:1
4216:1
4211:=
4199:/
4195:1
4183:/
4179:1
4175:1
4127:=
4117:/
4113:1
4110:+
4103:/
4099:1
4095:1
4090:=
4078:/
4074:1
4071:+
4062:/
4058:1
4054:1
3602:.
3410:4
3406:1
3403:+
3334:/
3327:+
3287:4
3283:1
3280:+
3188:5
3184:1
3109:.
3038:s
3034:i
2996:s
2992:i
2954:s
2950:i
2912:s
2908:i
2870:s
2866:i
2828:s
2824:i
2786:s
2782:i
2744:s
2740:i
2702:s
2698:i
2660:s
2656:i
2618:s
2614:i
2576:i
2538:s
2534:i
2496:s
2492:i
2454:s
2450:i
2412:s
2408:i
2370:i
2332:s
2328:i
2290:s
2286:i
2248:s
2244:i
2242:6
2206:s
2202:i
2200:6
2164:s
2160:i
2122:s
2118:i
2078:s
2074:i
2036:s
2032:i
1994:s
1990:i
1988:6
1952:s
1948:i
1946:9
1910:s
1906:i
1904:3
1868:i
1866:6
1830:s
1826:i
1824:3
1788:s
1784:i
1782:2
1746:s
1742:i
1740:4
1704:i
1702:3
1666:s
1662:i
1622:s
1618:i
1581:s
1577:2
1573:1
1568:i
1531:s
1529:3
1491:i
1487:)
1485:i
1483:(
1447:s
1443:i
1441:4
1405:i
1401:s
1399:3
1363:s
1359:i
1319:s
1315:)
1313:s
1311:(
1275:s
1271:i
1232:s
1228:2
1224:1
1184:i
1180:s
1142:i
1138:s
1136:2
1123:8
1098:s
1094:i
1092:2
1079:7
1054:i
1050:s
1048:5
1037:6
1012:i
1008:s
995:2
970:s
966:i
953:1
935:6
928:s
924:i
922:5
893:5
886:i
882:s
851:1
844:s
840:i
800:s
796:2
792:1
789:+
783:i
721:i
717:s
612:(
548:=
250:1
240:3
236:1
233:+
231:2
214:1
112:(
20:.
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