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Prime meridian

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7390: 857:, the line of 0° longitude along the surface of the Earth has slowly moved toward the west from this shifted position by a few centimetres (inches); that is, towards the Airy Transit Circle (or the Airy Transit Circle has moved toward the east, depending on your point of view) since 1984 (or the 1960s). With the introduction of satellite technology, it became possible to create a more accurate and detailed global map. With these advances there also arose the necessity to define a reference meridian that, whilst being derived from the Airy Transit Circle, would also take into account the effects of plate movement and variations in the way that the Earth was spinning. As a result, the 8752: 971: 5109: 5069: 5018: 4968: 4925: 4879: 4832: 4784: 4726: 4646: 4595: 4501: 4450: 4400: 4353: 4285: 4225: 4158: 4068: 4022: 3913: 3866: 3815: 3768: 3721: 3672: 3605: 3558: 3512: 3394: 3332: 36: 488: 118: 983: 504: 1643: 7384: 2506: 2388: 963: 193: 2325: 2197: 3006: 8788: 2565: 2447: 403: 2263: 1824: 2017: 1890: 8812: 8764: 8800: 713: 8776: 8740: 162:, which is determined by the axis of rotation. However, for celestial objects that are tidally locked (more specifically, synchronous), their prime meridians are determined by the face always inward of the orbit (a planet facing its star, or a moon facing its planet), just as equators are determined by rotation. 5317:
The IRM is the only meridian that may now be described as the prime meridian of the world, as it defines 0° longitude by international agreement. The IRM passes 102.5 metres (112 yards) to the east of the historic Prime Meridian of the World at the latitude of the Airy Transit Circle here. The entire
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has several coordinate systems because its cloud tops—the only part of the planet visible from space—rotate at different rates depending on latitude. It is unknown whether Jupiter has any internal solid surface that would enable a more Earth-like coordinate system. System I and System II coordinates
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est longitudes are used when the rotation is direct, and east longitudes are used when the rotation is retrograde. ... The Earth, Sun, and Moon do not traditionally conform to this definition. Their rotations are direct and longitudes run both east and west 180°, or positive to the east 360°.
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in 1721. It was set up in the extreme north-west corner of the Observatory between Flamsteed House and the Western Summer House. This spot, now subsumed into Flamsteed House, is roughly 43 metres (47 yards) to the west of the Airy Transit Circle, a distance equivalent to roughly 2 seconds of
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totalling 5.926 km (3.682 mi), which was used by Spain during the 15th, 16th, and 17th centuries for navigation. In 1897 Henry Harrise noted that Jaime Ferrer, the expert consulted by King Ferdinand and Queen Isabella, stated that a league was four miles of six
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produced the first modern atlas in 1570, other islands such as Cape Verde were coming into use. In his atlas longitudes were counted from 0° to 360°, not 180°W to 180°E as is usual today. This practice was followed by navigators well into the 18th century. In 1634,
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each. Modern scholars agree that the geographic stade was the Roman or Italian stade, not any of several other Greek stades, supporting these figures. Harrise is in the minority when he uses the stade of 192.27 m (630.8 ft) marked within the stadium at
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are used on the Sun. The first is the Carrington heliographic coordinate system. In this system, the prime meridian passes through the center of the solar disk as seen from the Earth on 9 November 1853, which is when the English astronomer
6136:; Colvin, T. R.; Rogers, P. G.; Chodas, P. G.; Sjogren, W. L.; Akim, W. L.; Stepanyantz, E. L.; Vlasova, Z. P.; and Zakharov, A. I.; "The Rotation Period, Direction of the North Pole, and Geodetic Control Network of Venus", 169:
are measured from their prime meridian (at 0°) to 180° east and west. For all other Solar System bodies, longitude is measured from 0° (their prime meridian) to 360°. West longitudes are used if the rotation of the body is
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Since 1984, the international standard for the Earth's prime meridian is the IERS Reference Meridian. Between 1884 and 1984, the meridian of Greenwich was the world standard. These meridians are very close to each other.
838:(the local vertical is affected by influences such as nearby mountains). The change from relying on the local vertical to using a meridian based on the centre of the Earth caused the modern prime meridian to be 5984: 834:. The new techniques resulted in the IERS Reference Meridian, the plane of which passes through the centre of mass of the Earth. This differs from the plane established by the Airy transit, which is affected by 869:, which defines and maintains the link between longitude and time. Based on observations to satellites and celestial compact radio sources (quasars) from various coordinated stations around the globe, Airy's 8006: 3231:'s prime meridian, like that of Earth's moon, is defined so that it runs through the middle of the face that is always turned towards Jupiter (the near side, known as the subjovian hemisphere). 3094:
As on the Earth, prime meridians must be arbitrarily defined. Often a landmark such as a crater is used; other times a prime meridian is defined by reference to another celestial object, or by
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Archinal, Brent A.; A'Hearn, Michael F.; Bowell, Edward L.; Conrad, Albert R.; et al. (2010). "Report of the IAU Working Group on Cartographic Coordinates and Rotational Elements: 2009".
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east of the astronomic Greenwich prime meridian through the Airy Transit Circle. At the latitude of Greenwich, this amounts to 102 metres (112 yards). This was officially accepted by the
5809: 3138:. This meridian was chosen because it runs through the point on Mercury's equator where the average temperature is highest (due to the planet's rotation and orbit, the sun briefly 6794: 6694: 6905: 5221:
Voting took place on 13 October and the resolutions were adopted on 22 October 1884. The modern prime meridian, the IERS Reference Meridian, is placed very near this meridian.
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ever since the first observation he took with it. Prior to that, it was defined by a succession of earlier transit instruments, the first of which was acquired by the second
3020: 102:(for an east-west notational system). For Earth's prime meridian, various conventions have been used or advocated in different regions throughout history. Earth's current 6023: 7288: 866: 819: 4994:
calls this point אמצע היישוב, "the middle of the habitation", i.e. the habitable hemisphere. Evidently this was a convention accepted by Arab geographers of his day.
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for his calculations. The German physician, Johannes Müntz used it the same way in his 1495 calendar. However, in the second edition, he used the Vienna meridian.
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Used in 18th and 19th (officially 1779–1871) century Japanese maps. Exact place unknown, but in "Kairekisyo" in Nishigekkoutyou-town in Kyoto, then the capital.
672:, 22 countries voted to adopt the Greenwich meridian as the prime meridian of the world. The French argued for a neutral line, mentioning the Azores and the 2850: 2793: 1497: 1234: 2691: 2591: 1393: 358: 2041: 1914: 6373: 6150: 6108: 1284: 7980: 6841: 5702:
International Conference Held at Washington for the Purpose of Fixing a Prime Meridian and a Universal Day. October, 1884. Protocols of the proceedings
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in 1477, and many early globes in the 16th century followed his lead. But there was still a hope that a "natural" basis for a prime meridian existed.
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Greenwich Observatory ... the story of Britain's oldest scientific institution, the Royal Observatory at Greenwich and Herstmonceux, 1675–1975
4557: 2155: 7046: 7021: 6727: 2739: 1782: 7204: 6956: 6548:"The Project Gutenberg eBook of International Conference Held at Washington for the Purpose of Fixing a Prime Meridian and a Universal Day" 5916: 3954: 2523: 1975: 1848: 5801: 2464: 2405: 2221: 7115: 6599: 6502: 6413:, P. G. Rogers, and T. R. Colvin, "A Control Network of Triton," Journal of Geophysical Research, Vo l. 96, E l, pp. 15,675-15,681, 1991. 2346: 6788: 6691: 6646: 5651: 7063: 6897: 6551: 6425: 5706: 889: 7184: 6746: 6261: 6196:; Conrad, Albert R.; et al. (2018), "Report of the IAU Working Group on Cartographic Coordinates and Rotational Elements: 2015", 893: 847: 692: 7742: 4536:, Miklós Erdélyi (1423–1473), Johannes Tolhopff (c. 1445–1503), Johannes Muntz. Set in the royal castle (and observatory) of Buda. 3116: 788:, then via radio time signals. One remote longitude ultimately based on the Greenwich meridian using these methods was that of the 780:
along the direction of gravity at the surface. This astronomic Greenwich meridian was disseminated around the world, first via the
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are based on atmospheric rotation, and System III coordinates use Jupiter's magnetic field. The prime meridians of Jupiter's four
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Davies, M. E., "Surface Coordinates and Cartography of Mercury," Journal of Geophysical Research, Vol. 80, No. 17, June 10, 1975.
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In the early 18th century the battle was on to improve the determination of longitude at sea, leading to the development of the
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In October 1884 the Greenwich Meridian was selected by delegates (forty-one delegates representing twenty-five nations) to the
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longitude. It was Airy's transit circle that was adopted in principle (with French delegates, who pressed for adoption of the
7097: 6640: 5973:, S. E. Dwornik, D. E. Gault, and R. G. Strom, NASA Atlas of Mercury, NASA Scientific and Technical Information Office, 1978. 3064: 839: 7711: 2999: 7136: 846:(BIH) in 1984 via its BTS84 (BIH Terrestrial System) that later became WGS84 (World Geodetic System 1984) and the various 776:
All of these Greenwich meridians were located via an astronomic observation from the surface of the Earth, oriented via a
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International Conference Held at Washington for the Purpose of Fixing a Prime Meridian and a Universal Day. October, 1884
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Archinal, Brent A.; A'Hearn, Michael F.; Bowell, Edward G.; Conrad, Albert R.; Consolmagno, Guy J.; et al. (2010).
5619:"What is the Prime Meridian - and why is it in Greenwich? | Who decided that the Prime Meridian should be in Greenwich?" 789: 1654: 843: 5331: 3839: 440:
reported (1493) that the compass pointed due north somewhere in mid-Atlantic, and this fact was used in the important
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west of Africa, at the left-hand edge of the map. (The obvious central line shown here is the junction of two sheets).
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The Canary Islands and the Question of the Prime Meridian: The Search for Precision in the Measurement of the Earth
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and, like the Earth's moon, always has the same face towards Saturn, and so the middle of that face is 0 longitude.
5961:, "Surface Coordinates and Cartography of Mercury," Journal of Geophysical Research, Vol. 80, No. 17, 10 June 1975 527:(14°1'W) in the Canaries. His later maps used the Azores, following the magnetic hypothesis. But by the time that 6532:, 1909, by Barão Homem de Mello e Francisco Homem de Mello, published in Rio de Janeiro by F. Briguiet & Cia. 5406: 6775: 5831:
Malys, Stephen; Seago, John H.; Palvis, Nikolaos K.; Seidelmann, P. Kenneth; Kaplan, George H. (1 August 2015).
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as 268° 45' (starting from Fuerteventura) in the Extract from the Official log of Jacob Roggeveen reproduced in
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Rose to prominence with Dutch cartographers and navigators after they abandoned the idea of a magnetic meridian
3103: 913: 896:(ITRF). A current convention on the Earth uses the line of longitude 180° opposite the IRM as the basis for the 8837: 7535: 6330: 3444: 3384: 3108: 823: 785: 175: 171: 6377: 6154: 6112: 691:
adopted an early version of the IRM in 1983 for all nautical charts. It was adopted for air navigation by the
310:(about 20°W) today. At that time the chief method of determining longitude was by using the reported times of 7716: 5492: 6849: 5618: 5296: 5171: 3280:'s prime meridian is defined as the meridian passing through the center of the face that is always towards 3193:
runs through the Kait crater, which was arbitrarily chosen because it is near the equator (about 2° south).
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is at 182° W. The 0° longitude runs through the middle of the face that is always turned towards Jupiter.
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11.58325″ W (NAD 83) (three different monuments originally intended to be on the White House meridian)
3139: 3088: 970: 959:, the IERS Reference Meridian (as of 2016) passes through 8 countries, 4 seas, 3 oceans and 1 channel: 728: 717: 644: 111: 24: 6311:, Thomas A. Hauge, et al.: Control Networks for the Galilean Satellites: November 1979 R-2532-JPL/NASA 5933: 873:
drifts northeast about 2.5 centimetres (1 inch) per year relative to this Earth-centred 0° longitude.
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retained Maskelyne's calculations from Greenwich – in spite of the fact that every other table in the
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also recalled, how was he acquired the knowledge to calculate meridians by means of these tables.
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lies directly in the middle of the face of the Moon visible from Earth and passes near the crater
1905: 19:"Prime Meridian" redirects here. For Earth's prime meridian, often called the Prime Meridian, see 8115: 7752: 7530: 7432: 7348: 7343: 7038: 7013: 6724: 5645:"A manual on the technical aspects of the United Nations Convention on the Law of the Sea – 1982" 3991: 897: 858: 827: 809: 684: 107: 54: 20: 6953: 5913: 822:
changed from reliance on optical instruments like the Airy Transit Circle to techniques such as
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produced his famous 41 cm terrestrial globe and drew his prime meridian precisely through
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is a gas giant, so any surface is obscured by clouds. The prime meridian of its largest moon,
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abstaining) as the Prime Meridian of the world at the 1884 International Meridian Conference.
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at which longitude is defined to be 0°. Together, a prime meridian and its anti-meridian (the
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Opposite of Greenwich, proposed 13 October 1884 on the International Meridian Conference by
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decided to round this off to 20°, so that it simply became the meridian of Paris disguised.
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Observatory and the historic Prime Meridian now lie to the west of the true prime meridian.
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Speech by Pierre Janssen, director of the Paris observatory, at the first session of the
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Report of the IAU Working Group on Cartographic Coordinates and Rotational Elements: 2015
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to be the common zero of longitude and standard of time reckoning throughout the world.
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is at 128° W, and the 0° longitude runs through the middle of the subjovian hemisphere.
623: 603: 555:. But it was the development of accurate star charts, principally by the first British 548: 533: 477: 135: 131: 99: 95: 6927: 6586:
46″ W of Greenwich to be exactly 20° W of Paris. French "submarin" at Washington 1884.
4424: 147: 117: 8282: 8192: 7765: 7630: 7447: 7093: 6702: 6636: 6374:"USGS Astrogeology: Rotation and pole position for planetary satellites (IAU WGCCRE)" 6351: 6225: 6094: 6082: 6019: 5745: 5472: 5462: 5402: 5153: 5147: 4622: 4249: 4215: 3711: 2137: 2080: 1953: 643:. "Maskelyne's tables not only made the lunar method practicable, they also made the 541: 520: 121: 6359: 6151:"USGS Astrogeology: Rotation and pole position for the Sun and planets (IAU WGCCRE)" 6109:"USGS Astrogeology: Rotation and pole position for the Sun and planets (IAU WGCCRE)" 8832: 8768: 8744: 8106: 8091: 8077: 8056: 8040: 8019: 7910: 7656: 7635: 7587: 7550: 7363: 6410: 6347: 6308: 6213: 6175: 6133: 6074: 6007: 5970: 5958: 5852: 5501: 5429: 5382: 5257:(1480), to King Matthias Corvinus, he emphasized that he had used the meridian of 5133: 4774: 4762: 4698: 4107: 3484: 3364: 3201: 3154: 3135: 3131: 1958: 982: 761: 738: 669: 556: 528: 508: 492: 200: 7958: 5212:, resulting in a league (32 stades) of 6.153 km (3.823 mi), 3.8% larger. 3098:. The prime meridians of the following planetographic systems have been defined: 7641: 7620: 7452: 7424: 7189: 6960: 6770: 6750: 6731: 6698: 6674: 6603: 6529: 6506: 6429: 5920: 5687: 5579: 5539: 5235: 5209: 4585: 4134:
in Amsterdam; used to define the legal time in the Netherlands from 1909 to 1937
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over newly discovered lands. The Tordesillas line was eventually settled at 370
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38″N whereas its latitude on the European Terrestrial Reference Frame (1989)
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Parallel meridians: Diffusion and change in early modern oceanic reckoning
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Used until the Middle Ages, proposed as one possible neutral meridian by
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06.276″ W (both presumably NAD 27). If NAD27, the latter would be 77°03
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was established in 1971 and passes through the center of the crater
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The Diplomatic History of America: Its first chapter 1452—1493—1494
5386: 4754: 4203: 4049: 3699: 3112: 3087:"Prime meridian (planets)" redirects here. Not to be confused with 1839: 1218: 647:
the universal reference point. Even the French translations of the
540:, 19° 55' west of Paris, as the choice of meridian. The geographer 449: 8493: 8085: 8048: 8011: 7874: 7864: 7794: 7666: 7577: 7442: 6573: 6478: 6476: 6474: 5041:
Used from 4th century CE Indian astronomy and calendars(see also
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Burgess, Ebenezer (1860), "Translation of the Surya-Siddhanta",
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Eenheid van tijd in Nederland (Unity of time in the Netherlands)
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CE) who first used a consistent meridian for a world map in his
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Offered in 1884 as possibility for a neutral prime meridian by
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Chardon, Roland (1980). "The linear league in North America".
5371:"The Computation of the Length of Daylight in Hindu Astronomy" 7849: 7661: 7560: 7515: 6842:"Az asztrológia, alkémia és misztika Mátyás király udvarában" 5050: 4906: 4000: 3795: 3277: 3150: 2682: 2570: 2452: 2089: 2022: 1966: 1895: 885: 512: 445: 5551:
The voyage of Don Felipe Gonzalez to Easter Island in 1770-1
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Engels, Donald (1985). "The length of Eratosthenes' stade".
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International Earth Rotation and Reference Systems Service
6819:"Stellarium – egy csillagászati kódex Mátyás könyvtárában" 6500:
Oct. 13, 1884: Greenwich Resolves Subprime Meridian Crisis
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International Earth Rotation and Reference Systems Service
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International Earth Rotation and Reference Systems Service
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The position of the historic prime meridian, based at the
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The astronomic latitude of the Royal Observatory is 51°28
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The current international standard Prime Meridian is the
90:. This great circle divides a spheroid, like Earth, into 16:
Line of longitude, at which longitude is defined to be 0°
5297:"What is the Prime Meridian and why is it in Greenwich?" 563:
between 1680 and 1719 and disseminated by his successor
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The notion of longitude for Greeks was developed by the
7014:"The Greenwich Meridian before the Airy Transit Circle" 6734:, Utrecht University website, retrieved 28 August 2013. 5547: 5176:
Pages displaying short descriptions of redirect targets
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of 1494, which settled the territorial dispute between
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One Time Fits All: The Campaigns for Global Uniformity
6178:, and Berg, R. A.; "Preliminary Control Net of Mars", 5174: – Geometric center of all land surfaces on Earth 476:
was still used for the same reason as late as 1594 by
8728: 5914:
IRM on grounds of Royal Observatory from Google Earth
5765: 5763: 5761: 6848:(in Hungarian). VI. évfolyam 5. szám. Archived from 676:, but eventually abstained and continued to use the 7988: 7007:(e-book), vol. 6 (published 2013), p. 185 6980: 6610:, The Hague, 2005, p. 7. Retrieved 2 February 2015. 6050: 571:of determining longitude more accurately using the 480:, although by then it had been shown that the zero 7219: 7085: 5865: 5781: 5758: 792:or NAD27, an ellipsoid whose surface best matches 594:meridian, usually through their capital, hence in 23:. For the historical meridian it is based on, see 5799: 5744:. Vol. 1. Taylor & Francis. p. 10. 5520: 5422:Annals of the Association of American Geographers 865:the Earth's prime meridian (0° longitude) by the 246:, and applied to a large number of cities by the 8824: 6542: 6540: 6538: 5168: – Cartographical (only) marker at 0°N, 0°E 4685:stated, he had one copy of Tabulae Varadienses ( 203:around 1300, using a prime meridian through the 130:(1595) used a prime meridian somewhere close to 110:. It is derived, but differs slightly, from the 7185:Prime meridians in use in the 1880s, by country 5381:(3). The University of Chicago Press: 205–211. 3179:, although it is fixed by the longitude of the 756:in 1851. It was defined by the location of the 698: 7105: 6681:, 23 December 2016. Retrieved 8 November 2018. 6254: 6182:, vol. 76, no. 2, 10 January 1971, pp. 373–393 5613: 5611: 5283: 707: 7974: 7205: 7151:Sobel, Dava; Andrewes, William J. H. (1998), 7150: 6535: 6320: 5602: 5590: 536:used the westernmost island of the Canaries, 5461:. London: Stevens. pp. 85–97, 176–190. 3955:United Kingdom Ordnance Survey Zero Meridian 343:, the ancient name for the historic city of 7180:scanned TIFFs of the conference proceedings 7170:"Where the Earth's surface begins—and ends" 6237: 6198:Celestial Mechanics and Dynamical Astronomy 6059:Celestial Mechanics and Dynamical Astronomy 5992:Celestial Mechanics and Dynamical Astronomy 5608: 5323: 5252: 5251:When Tolhopff handed over his book, titled 4692: 4686: 4634: 4252:, 180° from a meridian running through the 7981: 7967: 7212: 7198: 6366: 5787:TIME from Earth Rotation to Atomic Physics 4566:On the Revolutions of the Heavenly Spheres 4524:Used between 1469 and 1495; introduced by 890:International Terrestrial Reference System 848:International Terrestrial Reference Frames 803: 317:One of the earliest known descriptions of 154:A prime meridian for a planetary body not 6839: 6668:"In search of the lost meridian of Cadiz" 6635:. Stanford University Press. p. 98. 6624: 6622: 6620: 6618: 6616: 6314: 6264:. Astrogeology.usgs.gov. 15 November 2013 5856: 3632:at the International Meridian Conference 3359:at the International Meridian Conference 3289:List of historic prime meridians on Earth 3134:was defined to be 20° east of the crater 894:International Terrestrial Reference Frame 876:It is also the reference meridian of the 693:International Civil Aviation Organization 511:, with Cape Verde as its prime meridian; 484:line did not follow a line of longitude. 460:. This is shown in the copies of Spain's 7743:International Commission on Stratigraphy 7005:Journal of the American Oriental Society 6786: 6753:, asprs.org, Retrieved 10 December 2013. 6495: 6493: 6491: 5885:"Greenwich Meridan, Tracing its History" 5454: 5329: 3838:Royal Observatory in southeast tower of 3077:Prime meridian on other celestial bodies 981: 969: 961: 861:was established and is commonly used to 711: 502: 486: 401: 337:, or zero longitude, as passing through 321:in India appeared in the 4th century CE 294:, which are usually associated with the 191: 116: 7106:Norgate, Jean; Norgate, Martin (2006), 7002: 6986: 6816: 5419: 5368: 3247:'s prime meridian is defined such that 3237:'s prime meridian is defined such that 3221:'s prime meridian is defined such that 3204:, chosen because it is sharply defined. 3149:Defined in 1992, the prime meridian of 888:and its two formal versions, the ideal 689:International Hydrographic Organization 8825: 7061: 7036: 7011: 6701:, Ministerio de Defensa, 1988, p.144, 6684: 6661: 6628: 6613: 6482: 5871: 5789:. Weinheim: Wiley-VCH. pp. 244–5. 5769: 5739: 5657:from the original on 10 September 2008 5526: 5489: 586:In the 18th century most countries in 7962: 7193: 7139:from the original on 16 February 2016 7118:from the original on 28 December 2021 7083: 6797:from the original on 30 December 2021 6744:Grids & Datums – Italian Republic 6608:Noord-Zuid in Oostindisch perspectief 6554:from the original on 18 December 2021 6488: 6140:, vol. 97, no. 8, 1992, pp. 1–14, 151 5934:"Carrington heliographic coordinates" 5895:from the original on 19 December 2017 5727: 5709:from the original on 18 December 2021 5548:Bolton Glanville Corney, ed. (1908), 5409:from the original on 26 January 2022. 5307:from the original on 13 December 2021 4556:at the Old Kraków Observatory at the 2672: 996: 567:, that enabled navigators to use the 6878:from the original on 6 February 2015 6692:El Observatorio de Cádiz (1753–1831) 6690:Antonio Lafuente and Manuel Sellés, 6649:from the original on 22 January 2023 6432:, pp. 43–51. Project Gutenberg 6324:; Williams, D. A. (2005). "Io after 6101: 5812:from the original on 7 November 2015 5800:ROG Learning Team (23 August 2002). 5775: 3905:Prime Meridian (prior to Greenwich) 3186:, which is defined to be 47.95137°W. 146:. His 180th meridian runs along the 7129: 6908:from the original on 1 October 2017 6550:. Gutenberg.org. 12 February 2006. 6465: 6453: 6441: 5907: 5877: 5793: 5693: 5625:from the original on 5 January 2022 4673:was set in the Fortress of Oradea ( 3153:passes through the central peak in 3117:Stonyhurst heliographic coordinates 882:United States Department of Defense 13: 7135:, National Geodetic Survey, 2016, 7039:"WGS84 and the Greenwich Meridian" 6934:from the original on 12 April 2009 6290:from the original on 15 April 2012 6192:Archinal, Brent A.; Acton, C. H.; 5833:"Why the Greenwich meridian moved" 5542:in 1722 reported the longitude of 5434:10.1111/j.1467-8306.1980.tb01304.x 5346:from the original on 6 August 2019 3842:, used 1735–1850 by Spanish Navy. 2335:For about 432 km, running through 14: 8859: 7463:Discrete time and continuous time 7163: 6807:(facsimile, not machine readable) 5940:from the original on 28 June 2011 5802:"The Prime Meridian at Greenwich" 5785:; Seidelmann, P. Kenneth (2009). 3065:Amundsen–Scott South Pole Station 3048:Amundsen–Scott South Pole Station 903: 832:very-long-baseline interferometry 735:International Meridian Conference 666:International Meridian Conference 199:'s 1st projection, redrawn under 8810: 8798: 8786: 8774: 8762: 8750: 8738: 8004: 7388: 7382: 7088:Greenwich Time and the Longitude 7049:from the original on 8 July 2014 5621:. Royal Museums Greenwich. n.d. 5107: 5067: 5016: 4966: 4923: 4877: 4830: 4782: 4724: 4644: 4593: 4499: 4448: 4398: 4351: 4283: 4223: 4156: 4066: 4020: 3911: 3864: 3813: 3766: 3719: 3670: 3603: 3556: 3510: 3392: 3330: 3200:is 4 degrees east of the crater 3004: 2575:From the Togo-Ghana border near 2563: 2504: 2445: 2386: 2323: 2261: 2195: 2015: 1888: 1822: 1641: 892:(ITRS) and its realization, the 34: 7132:NGS datasheet station name form 7024:from the original on 2 May 2012 6966: 6946: 6920: 6890: 6864: 6833: 6810: 6780: 6756: 6737: 6715: 6589: 6566: 6516: 6416: 6404: 6392: 6302: 6276: 6238:Marc Reyman (30 October 2015). 6231: 6185: 6180:Journal of Geophysical Research 6169: 6143: 6138:Journal of Geophysical Research 6127: 6041: 5976: 5964: 5952: 5926: 5824: 5721: 5674: 5637: 5565: 5532: 5245: 5224: 5215: 3104:heliographic coordinate systems 853:Due to the movement of Earth's 844:Bureau International de l'Heure 786:submarine communications cables 432:was first printed with maps at 286:Ptolemy used as his basis the " 7536:History of timekeeping devices 7065:A multitude of prime meridians 6995: 6928:"Meridian Zero csillagászklub" 6331:Reports on Progress in Physics 5483: 5448: 5413: 5362: 5289: 5188: 3445:Old Naval Observatory meridian 3385:New Naval Observatory meridian 3130:In 1975 the prime meridian of 3109:Richard Christopher Carrington 2662:EEZ of Ghana in Atlantic Ocean 515:is thus located around 180° E. 134:, passing just to the west of 1: 5493:American Journal of Philology 5268: 3936:Located at King George III's 3142:at noon at this point during 1106:Exclusive Economic Zone (EEZ) 966:The prime meridian on a globe 639:based on the meridian of the 290:", a group of islands in the 165:Longitudes for the Earth and 6776:Den Store Danske Encyklopædi 6284:"Planetographic Coordinates" 5681:WGS 84 Implementation Manual 5554:, Hakluyt Society, p. 3 5172:Geographical center of Earth 3111:started his observations of 2211:to Algeria-Mali border near 750:Royal Observatory, Greenwich 722:Royal Observatory, Greenwich 699:International prime meridian 641:Royal Observatory, Greenwich 76:geographic coordinate system 7: 7483:Gravitational time dilation 7319:Barycentric Coordinate Time 6787:Tolhopff, Johannes (1480). 5705:. Project Gutenberg. 1884. 5141: 3461:11.55811″ W (NAD 83), 77°02 3457:11.56299″ W (NAD 83), 77°02 3146:, giving it more sunlight). 974:The prime meridian sign in 941:GPX (secondary coordinates) 708:Prime meridian at Greenwich 633:published 49 issues of the 10: 8864: 7339:Geocentric Coordinate Time 7324:Barycentric Dynamical Time 7262:Coordinated Universal Time 6840:Szathmáry, László (2002). 6352:10.1088/0034-4885/68/2/R02 5740:Forbes, Eric Gray (1975). 5284:Norgate & Norgate 2006 5198:(nautical league) of four 3377:02.24″ W (NAD 27) or 77°04 3274:, was established in 1991. 3215:were established in 1979. 3160:The prime meridian of the 3089:Central meridian (planets) 3086: 3080: 1094:EEZ of Greenland (Denmark) 1002:Country, territory or sea 951:On Earth, starting at the 807: 729:Prime meridian (Greenwich) 726: 185: 181: 25:Prime meridian (Greenwich) 18: 8003: 8000: 7893: 7784: 7751: 7725: 7606: 7506: 7493:Time-translation symmetry 7423: 7397: 7380: 7304:International Atomic Time 7254: 7231: 7154:The Illustrated Longitude 6974:Hilchot Kiddush Hachodesh 6218:10.1007/s10569-017-9805-5 6079:10.1007/s10569-010-9320-4 6012:10.1007/s10569-010-9320-4 5858:10.1007/s00190-015-0844-y 5603:Sobel & Andrewes 1998 5591:Sobel & Andrewes 1998 5369:Schmidt, Olaf H. (1944). 5162: – Line of longitude 5156: – Line of longitude 5150: – Line of longitude 4669:Between 1464 and 1667, a 4495: 4279: 4152: 4062: 3943: 3907: 3388: 3363: 3058: 2989: 2941: 2936: 2888: 2831: 2777: 2729: 2561: 2502: 2443: 2384: 2321: 2259: 2193: 2136: 2079: 2013: 1952: 1886: 1820: 1763: 1709: 1639: 1589: 1535: 1481: 1431: 1381: 1322: 1272: 1213: 1163: 1104: 1050: 1004: 1001: 986:Prime meridian sign near 955:and heading south to the 936:GPX (primary coordinates) 911:Map all coordinates using 878:Global Positioning System 816:International Time Bureau 790:North American Datum 1927 507:1682 map of East Asia by 409:'s facsimile of the 1529 114:, the previous standard. 66:is an arbitrarily chosen 6749:20 November 2012 at the 6730:10 February 2015 at the 6673:30 November 2019 at the 6582:. Later redefined 17° 39 6428:18 December 2021 at the 5578:18 December 2021 at the 5455:Harrisse, Henry (1897). 5330:Archimal, B. A. (2015), 5301:Royal Museums Greeenwich 5181: 3373:56.07″ W (1897) or 77°04 1203:EEZ of Svalbard (Norway) 919:Download coordinates as: 416:, from the copy made by 314:in different countries. 238:190 – 120 222:276 – 195 7753:Astronomical chronology 7726:Archaeology and geology 7433:Absolute space and time 7349:IERS Reference Meridian 7344:International Date Line 7255:International standards 7157:, Fourth Estate, London 7037:Dolan, Graham (2013b). 7012:Dolan, Graham (2013a). 6817:Zsoldos, Endre (2014). 6629:Bartky, Ian R. (2007). 6602:26 January 2018 at the 6505:1 December 2018 at the 5919:14 October 2016 at the 5806:Royal Museums Greenwich 4718:Meridian of Alexandria 4392:Meridianus Posoniensis 3992:IERS Reference Meridian 3259:is the largest moon of 1655:Tunstall in East Riding 898:International Date Line 859:IERS Reference Meridian 828:satellite laser ranging 810:IERS Reference Meridian 804:IERS Reference Meridian 685:IERS Reference Meridian 629:Between 1765 and 1811, 351:, the ancient name for 273:90 – 168 257:BCE – c. 108:IERS Reference Meridian 55:IERS Reference Meridian 21:IERS Reference Meridian 7062:Hooker, Brian (2006), 7043:The Greenwich Meridian 7018:The Greenwich Meridian 6952:Wilcomb E. Washburn, " 5923:Accessed 30 March 2012 5686:3 October 2008 at the 5253: 5194:These figures use the 4693: 4687: 4635: 4308:Used in Roma 40 Datum 3196:The prime meridian on 3189:The prime meridian on 3171:The prime meridian of 3121:Stonyhurst Observatory 3119:system, originated at 991: 979: 976:Parnay, Maine-et-Loire 967: 814:Beginning in 1973 the 724: 654:Connaissance des Temps 516: 500: 499:as its prime meridian. 425: 208: 151: 106:prime meridian is the 104:international standard 8838:Meridians (geography) 7712:Weekday determination 7598:Sundial markup schema 7084:Howse, Derek (1997), 6846:Ponticulus Hungaricus 6769:14 March 2016 at the 6399:Satellites of Jupiter 4813:Great Pyramid of Giza 4493:Meridianu(s) Budense 4475:Stockholm Observatory 3157:, chosen arbitrarily. 1906:Castellón de la Plana 985: 973: 965: 931:GPX (all coordinates) 782:lunar distance method 752:, was established by 715: 506: 490: 442:Treaty of Tordesillas 405: 195: 120: 7733:Chronological dating 7473:Theory of relativity 7334:Daylight saving time 7112:Old Hampshire Mapped 7072:on 26 September 2018 6528:16 June 2014 at the 5573:Meridian Conference. 5339:, p. 27 of 46, 5123:class=notpageimage| 5083:class=notpageimage| 5032:class=notpageimage| 4982:class=notpageimage| 4939:class=notpageimage| 4893:class=notpageimage| 4846:class=notpageimage| 4798:class=notpageimage| 4740:class=notpageimage| 4660:class=notpageimage| 4609:class=notpageimage| 4560:; mentioned also in 4515:class=notpageimage| 4464:class=notpageimage| 4414:class=notpageimage| 4367:class=notpageimage| 4299:class=notpageimage| 4239:class=notpageimage| 4172:class=notpageimage| 4082:class=notpageimage| 4036:class=notpageimage| 3927:class=notpageimage| 3880:class=notpageimage| 3840:Castillo de la Villa 3829:class=notpageimage| 3782:class=notpageimage| 3735:class=notpageimage| 3686:class=notpageimage| 3619:class=notpageimage| 3572:class=notpageimage| 3526:class=notpageimage| 3469:White House meridian 3408:class=notpageimage| 3346:class=notpageimage| 3115:. The second is the 2943:International waters 2890:International waters 2878:International waters 2821:EEZ of Bouvet Island 2778:Passing through the 2731:International waters 2719:International waters 1525:EEZ of Great Britain 1433:International waters 1421:International waters 1274:International waters 1262:International waters 482:magnetic declination 438:Christopher Columbus 188:History of longitude 127:Atlas Cosmographicae 50:class=notpageimage| 8097:Tropic of Capricorn 8065:Tropic of Capricorn 8028:Tropic of Capricorn 7990:Circles of latitude 7943:Time value of money 7738:Geologic time scale 7593:History of sundials 7458:Cosmological decade 7410:Greenwich Mean Time 7241:Orders of magnitude 6959:29 May 2007 at the 6874:. Romania Tourism. 6697:2 June 2020 at the 6344:2005RPPh...68..303L 6210:2018CeMDA.130...22A 6194:A'Hearn, Michael F. 6071:2011CeMDA.109..101A 6004:2011CeMDA.109..101A 5849:2015JGeod..89.1263M 5605:, pp. 197–199. 5593:, pp. 110–115. 5086:136th meridian east 4694:Tabulae directionum 4679:Georg von Peuerbach 4636:Tabulae Varadienses 4562:Nicolaus Copernicus 3441:05.194″ W (NAD 83) 3349:168th meridian west 3083:Longitude (planets) 3032: /  2963: /  2910: /  2862: /  2805: /  2751: /  2703: /  2646: /  2603: /  2535: /  2476: /  2417: /  2358: /  2295: /  2233: /  2213:Bordj Badji Mokhtar 2167: /  2110: /  2053: /  1987: /  1926: /  1902:Cilindro de Marboré 1860: /  1794: /  1737: /  1683: /  1613: /  1563: /  1509: /  1455: /  1405: /  1355: /  1296: /  1246: /  1187: /  1137: /  1078: /  1024: /  836:vertical deflection 824:lunar laser ranging 758:Airy Transit Circle 491:1571 Africa map by 395:), a city near the 370: /  8848:Cardinal Richelieu 7918:Mental chronometry 7546:Marine chronometer 7398:Obsolete standards 7092:, Phillip Wilson, 6852:on 18 October 2009 6513:, 13 October 2010. 6380:on 24 October 2011 6157:on 24 October 2011 6115:on 24 October 2011 5889:gpsinformation.net 5837:Journal of Geodesy 5730:, pp. 12, 137 5035:75th meridian east 4985:59th meridian east 4942:39th meridian east 4896:35th meridian east 4849:31st meridian east 4801:30th meridian east 4743:29th meridian east 4688:Tabula Varadiensis 4663:21st meridian east 4612:21st meridian east 4558:Śniadecki' College 4518:19th meridian east 4467:18th meridian east 4417:17th meridian east 4370:14th meridian east 4302:12th meridian east 4242:11th meridian east 4175:10th meridian east 3975:Greenwich meridian 3738:16th meridian west 3689:18th meridian west 3652:later redefined as 3622:25th meridian west 3575:43rd meridian west 3529:75th meridian west 3433:06.119″ W or 77°03 3411:77th meridian west 3381:01.16″ W (NAD 83) 3155:the crater Ariadne 1661:, passing through 992: 980: 968: 725: 718:Greenwich meridian 645:Greenwich meridian 624:Greenwich meridian 590:adapted their own 549:marine chronometer 534:Cardinal Richelieu 517: 501: 478:Christopher Saxton 468:in 1527 and 1529. 426: 300:Cape Verde islands 209: 152: 136:Santa Maria Island 112:Greenwich Meridian 100:Western Hemisphere 96:Eastern Hemisphere 8726: 8725: 7956: 7955: 7766:Nuclear timescale 7448:Continuous signal 7174:Popular Mechanics 7099:978-0-85667-468-6 6642:978-0-8047-5642-6 6595:A.R.T. Jonkers; 6572:Ancient, used in 5154:1st meridian west 5148:1st meridian east 5139: 5138: 4681:. In his logbook 4250:Peters projection 4216:Florence meridian 4186:Oslo (Kristiania) 4085:4th meridian east 4039:2nd meridian east 3883:3rd meridian west 3832:6th meridian west 3785:9th meridian west 3712:Tenerife meridian 3638:El Hierro (Ferro) 3481:32.6″ W (NAD 83) 3299:Modern longitude 3074: 3073: 2398:For about 3.4 km 2138:Mediterranean Sea 2081:Mediterranean Sea 2069:Mediterranean Sea 1954:Mediterranean Sea 1942:Mediterranean Sea 1718:of Great Britain 695:on 3 March 1989. 618:meridian, and in 470:São Miguel Island 386:Rohitaka (Rohtak) 375:28.900°N 76.633°E 122:Gerardus Mercator 8855: 8815: 8814: 8813: 8803: 8802: 8801: 8791: 8790: 8789: 8779: 8778: 8767: 8766: 8765: 8755: 8754: 8753: 8743: 8742: 8741: 8734: 8717: 8710: 8703: 8696: 8107:Antarctic Circle 8092:Tropic of Cancer 8080: 8079:Antarctic Circle 8073: 8066: 8059: 8058:Tropic of Cancer 8051: 8043: 8042:Antarctic Circle 8036: 8029: 8022: 8021:Tropic of Cancer 8014: 8008: 7983: 7976: 7969: 7960: 7959: 7657:Dominical letter 7588:Equation of time 7551:Marine sandglass 7392: 7386: 7364:Terrestrial Time 7221:Time measurement 7214: 7207: 7200: 7191: 7190: 7158: 7147: 7146: 7144: 7126: 7125: 7123: 7108:"Prime meridian" 7102: 7091: 7080: 7079: 7077: 7068:, archived from 7058: 7056: 7054: 7033: 7031: 7029: 7008: 6990: 6984: 6978: 6970: 6964: 6950: 6944: 6943: 6941: 6939: 6924: 6918: 6917: 6915: 6913: 6894: 6888: 6887: 6885: 6883: 6868: 6862: 6861: 6859: 6857: 6837: 6831: 6830: 6825:(in Hungarian). 6814: 6808: 6806: 6804: 6802: 6784: 6778: 6760: 6754: 6741: 6735: 6723: 6719: 6713: 6712: 6688: 6682: 6665: 6659: 6658: 6656: 6654: 6626: 6611: 6593: 6587: 6585: 6570: 6564: 6563: 6561: 6559: 6544: 6533: 6520: 6514: 6497: 6486: 6480: 6469: 6463: 6457: 6451: 6445: 6439: 6433: 6420: 6414: 6411:Merton E. Davies 6408: 6402: 6396: 6390: 6389: 6387: 6385: 6376:. Archived from 6370: 6364: 6363: 6318: 6312: 6309:Merton E. Davies 6306: 6300: 6299: 6297: 6295: 6280: 6274: 6273: 6271: 6269: 6258: 6252: 6251: 6249: 6247: 6235: 6229: 6228: 6189: 6183: 6176:Merton E. Davies 6173: 6167: 6166: 6164: 6162: 6153:. Archived from 6147: 6141: 6134:Merton E. Davies 6131: 6125: 6124: 6122: 6120: 6111:. Archived from 6105: 6099: 6098: 6054: 6048: 6045: 6039: 6038: 6036: 6034: 6028: 6022:. Archived from 5989: 5980: 5974: 5971:Merton E. Davies 5968: 5962: 5959:Merton E. Davies 5956: 5950: 5949: 5947: 5945: 5930: 5924: 5911: 5905: 5904: 5902: 5900: 5881: 5875: 5869: 5863: 5862: 5860: 5828: 5822: 5821: 5819: 5817: 5797: 5791: 5790: 5783:McCarthy, Dennis 5779: 5773: 5767: 5756: 5755: 5737: 5731: 5725: 5719: 5718: 5716: 5714: 5697: 5691: 5678: 5672: 5670: 5666: 5664: 5662: 5656: 5649: 5641: 5635: 5634: 5632: 5630: 5615: 5606: 5600: 5594: 5588: 5582: 5569: 5563: 5562: 5561: 5559: 5536: 5530: 5524: 5518: 5517: 5487: 5481: 5480: 5452: 5446: 5445: 5417: 5411: 5410: 5366: 5360: 5359: 5353: 5351: 5345: 5338: 5327: 5321: 5320: 5314: 5312: 5293: 5287: 5281: 5262: 5256: 5249: 5243: 5241: 5233: 5228: 5222: 5219: 5213: 5192: 5177: 5134:Sandford Fleming 5116: 5111: 5076: 5071: 5058: 5025: 5020: 5007: 4975: 4970: 4932: 4927: 4914: 4886: 4881: 4868: 4839: 4834: 4821: 4815: 4791: 4786: 4775:Pulkovo meridian 4770: 4763:Saint Petersburg 4749:The meridian of 4733: 4728: 4714: 4699:Amerigo Vespucci 4696: 4690: 4677:at the time) by 4653: 4648: 4638: 4630: 4602: 4597: 4581: 4553:Kraków meridian 4549: 4508: 4503: 4489: 4457: 4452: 4439: 4407: 4402: 4388: 4360: 4355: 4342: 4321: 4292: 4287: 4268: 4232: 4227: 4211: 4193: 4165: 4160: 4147: 4124: 4108:Antwerp meridian 4103: 4075: 4070: 4057: 4029: 4024: 4008: 3987: 3970: 3950: 3920: 3915: 3901: 3873: 3868: 3855: 3822: 3817: 3803: 3775: 3770: 3757: 3728: 3723: 3707: 3679: 3674: 3658: 3653: 3648: 3612: 3607: 3594: 3565: 3560: 3547: 3519: 3514: 3501: 3485:Capitol meridian 3480: 3464: 3460: 3456: 3440: 3436: 3432: 3428: 3424: 3401: 3396: 3380: 3376: 3372: 3365:Washington, D.C. 3339: 3334: 3321: 3293: 3292: 3223:the crater Cilix 3056: 3055: 3053: 3052: 3051: 3049: 3044: 3043: 3038: 3037:90.000°S 0.000°E 3033: 3030: 3029: 3028: 3025: 3010: 3008: 3007: 2987: 2986: 2984: 2983: 2982: 2980: 2975: 2974: 2969: 2968:69.600°S 0.000°E 2964: 2961: 2960: 2959: 2956: 2934: 2933: 2931: 2930: 2929: 2927: 2922: 2921: 2916: 2915:60.000°S 0.000°E 2911: 2908: 2907: 2906: 2903: 2886: 2885: 2883: 2882: 2881: 2879: 2874: 2873: 2868: 2867:57.217°S 0.000°E 2863: 2860: 2859: 2858: 2855: 2829: 2828: 2826: 2825: 2824: 2822: 2817: 2816: 2811: 2810:51.717°S 0.000°E 2806: 2803: 2802: 2801: 2798: 2775: 2774: 2772: 2771: 2770: 2768: 2763: 2762: 2757: 2752: 2749: 2748: 2747: 2744: 2727: 2726: 2724: 2723: 2722: 2720: 2715: 2714: 2709: 2704: 2701: 2700: 2699: 2696: 2670: 2669: 2667: 2666: 2665: 2663: 2658: 2657: 2652: 2647: 2644: 2643: 2642: 2639: 2627: 2626: 2624: 2623: 2622: 2620: 2615: 2614: 2609: 2604: 2601: 2600: 2599: 2596: 2584:Passing through 2569: 2567: 2566: 2559: 2558: 2556: 2555: 2554: 2552: 2547: 2546: 2541: 2540:10.617°N 0.000°E 2536: 2533: 2532: 2531: 2528: 2516:For about 39 km 2510: 2508: 2507: 2500: 2499: 2497: 2496: 2495: 2493: 2488: 2487: 2482: 2481:10.967°N 0.000°E 2477: 2474: 2473: 2472: 2469: 2457:For about 16 km 2451: 2449: 2448: 2441: 2440: 2438: 2437: 2436: 2434: 2429: 2428: 2423: 2422:11.100°N 0.000°E 2418: 2415: 2414: 2413: 2410: 2392: 2390: 2389: 2382: 2381: 2379: 2378: 2377: 2375: 2370: 2369: 2364: 2363:11.117°N 0.000°E 2359: 2356: 2355: 2354: 2351: 2329: 2327: 2326: 2319: 2318: 2316: 2315: 2314: 2312: 2307: 2306: 2301: 2300:15.000°N 0.000°E 2296: 2293: 2292: 2291: 2288: 2273:Passing through 2267: 2265: 2264: 2257: 2256: 2254: 2253: 2252: 2250: 2245: 2244: 2239: 2238:21.867°N 0.000°E 2234: 2231: 2230: 2229: 2226: 2201: 2199: 2198: 2191: 2190: 2188: 2187: 2186: 2184: 2179: 2178: 2173: 2172:35.833°N 0.000°E 2168: 2165: 2164: 2163: 2160: 2134: 2133: 2131: 2130: 2129: 2127: 2122: 2121: 2116: 2115:37.017°N 0.000°E 2111: 2108: 2107: 2106: 2103: 2077: 2076: 2074: 2073: 2072: 2070: 2065: 2064: 2059: 2058:38.633°N 0.000°E 2054: 2051: 2050: 2049: 2046: 2021: 2019: 2018: 2011: 2010: 2008: 2007: 2006: 2004: 1999: 1998: 1993: 1992:38.867°N 0.000°E 1988: 1985: 1984: 1983: 1980: 1959:Gulf of Valencia 1950: 1949: 1947: 1946: 1945: 1943: 1938: 1937: 1932: 1931:39.933°N 0.000°E 1927: 1924: 1923: 1922: 1919: 1894: 1892: 1891: 1884: 1883: 1881: 1880: 1879: 1877: 1872: 1871: 1866: 1865:42.683°N 0.000°E 1861: 1858: 1857: 1856: 1853: 1828: 1826: 1825: 1818: 1817: 1815: 1814: 1813: 1811: 1806: 1805: 1800: 1799:49.333°N 0.000°E 1795: 1792: 1791: 1790: 1787: 1761: 1760: 1758: 1757: 1756: 1754: 1749: 1748: 1743: 1742:50.233°N 0.000°E 1738: 1735: 1734: 1733: 1730: 1707: 1706: 1704: 1703: 1702: 1700: 1695: 1694: 1689: 1688:50.783°N 0.000°E 1684: 1681: 1680: 1679: 1676: 1647: 1645: 1644: 1637: 1636: 1634: 1633: 1632: 1630: 1625: 1624: 1619: 1618:53.767°N 0.000°E 1614: 1611: 1610: 1609: 1606: 1587: 1586: 1584: 1583: 1582: 1580: 1575: 1574: 1569: 1568:61.000°N 0.000°E 1564: 1561: 1560: 1559: 1556: 1533: 1532: 1530: 1529: 1528: 1526: 1521: 1520: 1515: 1514:63.483°N 0.000°E 1510: 1507: 1506: 1505: 1502: 1479: 1478: 1476: 1475: 1474: 1472: 1467: 1466: 1461: 1460:64.700°N 0.000°E 1456: 1453: 1452: 1451: 1448: 1429: 1428: 1426: 1425: 1424: 1422: 1417: 1416: 1411: 1410:69.117°N 0.000°E 1406: 1403: 1402: 1401: 1398: 1379: 1378: 1376: 1375: 1374: 1372: 1367: 1366: 1361: 1360:72.883°N 0.000°E 1356: 1353: 1352: 1351: 1348: 1320: 1319: 1317: 1316: 1315: 1313: 1312:EEZ of Jan Mayen 1308: 1307: 1302: 1301:73.733°N 0.000°E 1297: 1294: 1293: 1292: 1289: 1270: 1269: 1267: 1266: 1265: 1263: 1258: 1257: 1252: 1251:76.183°N 0.000°E 1247: 1244: 1243: 1242: 1239: 1211: 1210: 1208: 1207: 1206: 1204: 1199: 1198: 1193: 1192:80.483°N 0.000°E 1188: 1185: 1184: 1183: 1180: 1161: 1160: 1158: 1157: 1156: 1154: 1149: 1148: 1143: 1142:81.650°N 0.000°E 1138: 1135: 1134: 1133: 1130: 1102: 1101: 1099: 1098: 1097: 1095: 1090: 1089: 1084: 1083:85.767°N 0.000°E 1079: 1076: 1075: 1074: 1071: 1048: 1047: 1045: 1044: 1043: 1041: 1036: 1035: 1030: 1029:90.000°N 0.000°E 1025: 1022: 1021: 1020: 1017: 994: 993: 880:operated by the 762:Astronomer Royal 739:Washington, D.C. 716:The line of the 670:Washington, D.C. 664:In 1884, at the 649:Nautical Almanac 636:Nautical Almanac 557:Astronomer Royal 509:Giacomo Cantelli 493:Abraham Ortelius 472:(25.5°W) in the 420:and held by the 394: 393: 391: 390: 389: 387: 382: 381: 376: 371: 368: 367: 366: 363: 329:. Postulating a 276: 272: 265:CE). But it was 264: 260: 256: 241: 237: 225: 221: 201:Maximus Planudes 43: 38: 8863: 8862: 8858: 8857: 8856: 8854: 8853: 8852: 8843:Prime meridians 8823: 8822: 8821: 8811: 8809: 8799: 8797: 8787: 8785: 8773: 8763: 8761: 8751: 8749: 8739: 8737: 8729: 8727: 8722: 8721: 8720: 8719: 8715: 8712: 8708: 8705: 8701: 8698: 8694: 8691: 8686: 8681: 8676: 8671: 8664: 8659: 8654: 8649: 8639: 8634: 8629: 8624: 8619: 8612: 8607: 8602: 8597: 8587: 8582: 8577: 8572: 8567: 8562: 8557: 8552: 8547: 8542: 8537: 8532: 8527: 8522: 8517: 8512: 8507: 8502: 8497: 8490: 8485: 8480: 8475: 8470: 8465: 8460: 8455: 8450: 8445: 8440: 8435: 8430: 8425: 8420: 8415: 8410: 8405: 8400: 8395: 8390: 8385: 8380: 8375: 8370: 8365: 8360: 8355: 8350: 8345: 8340: 8335: 8330: 8325: 8320: 8315: 8310: 8305: 8300: 8295: 8290: 8285: 8280: 8275: 8270: 8265: 8260: 8255: 8250: 8245: 8240: 8235: 8230: 8225: 8220: 8215: 8210: 8205: 8200: 8195: 8190: 8183: 8178: 8173: 8166: 8161: 8156: 8149: 8144: 8139: 8132: 8127: 8122: 8109: 8104: 8099: 8094: 8089: 8082: 8078: 8075: 8071: 8068: 8064: 8061: 8057: 8054: 8049: 8045: 8041: 8038: 8034: 8031: 8027: 8024: 8020: 8017: 8012: 7996: 7987: 7957: 7952: 7889: 7780: 7747: 7721: 7602: 7502: 7453:Coordinate time 7425:Time in physics 7419: 7393: 7387: 7378: 7250: 7227: 7218: 7176:, December 1930 7166: 7161: 7142: 7140: 7121: 7119: 7100: 7075: 7073: 7052: 7050: 7027: 7025: 6998: 6993: 6985: 6981: 6971: 6967: 6961:Wayback Machine 6951: 6947: 6937: 6935: 6930:(in Romanian). 6926: 6925: 6921: 6911: 6909: 6896: 6895: 6891: 6881: 6879: 6870: 6869: 6865: 6855: 6853: 6838: 6834: 6815: 6811: 6800: 6798: 6785: 6781: 6774:, article from 6771:Wayback Machine 6761: 6757: 6751:Wayback Machine 6742: 6738: 6732:Wayback Machine 6721: 6720: 6716: 6710: 6699:Wayback Machine 6689: 6685: 6675:Wayback Machine 6666: 6662: 6652: 6650: 6643: 6627: 6614: 6604:Wayback Machine 6594: 6590: 6583: 6571: 6567: 6557: 6555: 6546: 6545: 6536: 6530:Wayback Machine 6523:Atlas do Brazil 6521: 6517: 6507:Wayback Machine 6498: 6489: 6485:, introduction. 6481: 6472: 6464: 6460: 6452: 6448: 6440: 6436: 6430:Wayback Machine 6421: 6417: 6409: 6405: 6397: 6393: 6383: 6381: 6372: 6371: 6367: 6322:Lopes, R. M. C. 6319: 6315: 6307: 6303: 6293: 6291: 6282: 6281: 6277: 6267: 6265: 6260: 6259: 6255: 6245: 6243: 6236: 6232: 6190: 6186: 6174: 6170: 6160: 6158: 6149: 6148: 6144: 6132: 6128: 6118: 6116: 6107: 6106: 6102: 6055: 6051: 6046: 6042: 6032: 6030: 6029:on 4 March 2016 6026: 5987: 5981: 5977: 5969: 5965: 5957: 5953: 5943: 5941: 5932: 5931: 5927: 5921:Wayback Machine 5912: 5908: 5898: 5896: 5883: 5882: 5878: 5870: 5866: 5829: 5825: 5815: 5813: 5798: 5794: 5780: 5776: 5768: 5759: 5752: 5738: 5734: 5726: 5722: 5712: 5710: 5699: 5698: 5694: 5688:Wayback Machine 5679: 5675: 5668: 5660: 5658: 5654: 5647: 5643: 5642: 5638: 5628: 5626: 5617: 5616: 5609: 5601: 5597: 5589: 5585: 5580:Wayback Machine 5570: 5566: 5557: 5555: 5540:Jacob Roggeveen 5537: 5533: 5525: 5521: 5488: 5484: 5469: 5453: 5449: 5428:(2): 129–153 . 5418: 5414: 5367: 5363: 5349: 5347: 5343: 5336: 5328: 5324: 5310: 5308: 5295: 5294: 5290: 5282: 5275: 5271: 5266: 5265: 5250: 5246: 5239: 5231: 5229: 5225: 5220: 5216: 5210:Olympia, Greece 5193: 5189: 5184: 5175: 5144: 5129: 5128: 5127: 5125: 5119: 5118: 5117: 5114: 5089: 5088: 5087: 5085: 5079: 5078: 5077: 5074: 5056: 5038: 5037: 5036: 5034: 5028: 5027: 5026: 5023: 5005: 4988: 4987: 4986: 4984: 4978: 4977: 4976: 4973: 4945: 4944: 4943: 4941: 4935: 4934: 4933: 4930: 4912: 4899: 4898: 4897: 4895: 4889: 4888: 4887: 4884: 4866: 4852: 4851: 4850: 4848: 4842: 4841: 4840: 4837: 4819: 4811: 4804: 4803: 4802: 4800: 4794: 4793: 4792: 4789: 4768: 4746: 4745: 4744: 4742: 4736: 4735: 4734: 4731: 4712: 4666: 4665: 4664: 4662: 4656: 4655: 4654: 4651: 4628: 4615: 4614: 4613: 4611: 4605: 4604: 4603: 4600: 4586:Warsaw meridian 4579: 4547: 4534:Galeotto Marzio 4521: 4520: 4519: 4517: 4511: 4510: 4509: 4506: 4487: 4470: 4469: 4468: 4466: 4460: 4459: 4458: 4455: 4437: 4425:Sámuel Mikoviny 4420: 4419: 4418: 4416: 4410: 4409: 4408: 4405: 4386: 4373: 4372: 4371: 4369: 4363: 4362: 4361: 4358: 4340: 4319: 4305: 4304: 4303: 4301: 4295: 4294: 4293: 4290: 4266: 4245: 4244: 4243: 4241: 4235: 4234: 4233: 4230: 4209: 4191: 4178: 4177: 4176: 4174: 4168: 4167: 4166: 4163: 4145: 4122: 4101: 4088: 4087: 4086: 4084: 4078: 4077: 4076: 4073: 4055: 4042: 4041: 4040: 4038: 4032: 4031: 4030: 4027: 4006: 3985: 3968: 3948: 3938:Kew Observatory 3933: 3932: 3931: 3929: 3923: 3922: 3921: 3918: 3899: 3886: 3885: 3884: 3882: 3876: 3875: 3874: 3871: 3853: 3835: 3834: 3833: 3831: 3825: 3824: 3823: 3820: 3807:Cadiz meridian 3801: 3788: 3787: 3786: 3784: 3778: 3777: 3776: 3773: 3755: 3741: 3740: 3739: 3737: 3731: 3730: 3729: 3726: 3705: 3692: 3691: 3690: 3688: 3682: 3681: 3680: 3677: 3656: 3654: 3651: 3650: 3646: 3641: 3625: 3624: 3623: 3621: 3615: 3614: 3613: 3610: 3592: 3586:Fortunate Isles 3578: 3577: 3576: 3574: 3568: 3567: 3566: 3563: 3545: 3532: 3531: 3530: 3528: 3522: 3521: 3520: 3517: 3499: 3478: 3462: 3458: 3454: 3438: 3434: 3430: 3426: 3422: 3414: 3413: 3412: 3410: 3404: 3403: 3402: 3399: 3378: 3374: 3370: 3352: 3351: 3350: 3348: 3342: 3341: 3340: 3337: 3319: 3291: 3249:the crater Saga 3239:the crater Anat 3096:magnetic fields 3092: 3085: 3079: 3047: 3045: 3041: 3039: 3035: 3034: 3031: 3026: 3023: 3021: 3019: 3018: 3005: 3003: 2996:Queen Maud Land 2978: 2976: 2972: 2970: 2966: 2965: 2962: 2957: 2954: 2952: 2950: 2949: 2925: 2923: 2919: 2917: 2913: 2912: 2909: 2904: 2901: 2899: 2897: 2896: 2877: 2875: 2871: 2869: 2865: 2864: 2861: 2856: 2853: 2851: 2849: 2848: 2820: 2818: 2814: 2812: 2808: 2807: 2804: 2799: 2796: 2794: 2792: 2791: 2766: 2764: 2760: 2758: 2756:0.000°N 0.000°E 2754: 2753: 2750: 2745: 2742: 2740: 2738: 2737: 2718: 2716: 2712: 2710: 2708:1.967°N 0.000°E 2706: 2705: 2702: 2697: 2694: 2692: 2690: 2689: 2661: 2659: 2655: 2653: 2651:5.617°N 0.000°E 2649: 2648: 2645: 2640: 2637: 2635: 2633: 2632: 2618: 2616: 2612: 2610: 2608:7.767°N 0.000°E 2606: 2605: 2602: 2597: 2594: 2592: 2590: 2589: 2583: 2564: 2562: 2550: 2548: 2544: 2542: 2538: 2537: 2534: 2529: 2526: 2524: 2522: 2521: 2505: 2503: 2491: 2489: 2485: 2483: 2479: 2478: 2475: 2470: 2467: 2465: 2463: 2462: 2446: 2444: 2432: 2430: 2426: 2424: 2420: 2419: 2416: 2411: 2408: 2406: 2404: 2403: 2387: 2385: 2373: 2371: 2367: 2365: 2361: 2360: 2357: 2352: 2349: 2347: 2345: 2344: 2324: 2322: 2310: 2308: 2304: 2302: 2298: 2297: 2294: 2289: 2286: 2284: 2282: 2281: 2262: 2260: 2248: 2246: 2242: 2240: 2236: 2235: 2232: 2227: 2224: 2222: 2220: 2219: 2196: 2194: 2182: 2180: 2176: 2174: 2170: 2169: 2166: 2161: 2158: 2156: 2154: 2153: 2125: 2123: 2119: 2117: 2113: 2112: 2109: 2104: 2101: 2099: 2097: 2096: 2068: 2066: 2062: 2060: 2056: 2055: 2052: 2047: 2044: 2042: 2040: 2039: 2016: 2014: 2002: 2000: 1996: 1994: 1990: 1989: 1986: 1981: 1978: 1976: 1974: 1973: 1941: 1939: 1935: 1933: 1929: 1928: 1925: 1920: 1917: 1915: 1913: 1912: 1889: 1887: 1875: 1873: 1869: 1867: 1863: 1862: 1859: 1854: 1851: 1849: 1847: 1846: 1836:Villers-sur-Mer 1823: 1821: 1809: 1807: 1803: 1801: 1797: 1796: 1793: 1788: 1785: 1783: 1781: 1780: 1765:English Channel 1752: 1750: 1746: 1744: 1740: 1739: 1736: 1731: 1728: 1726: 1724: 1723: 1711:English Channel 1699:English Channel 1698: 1696: 1692: 1690: 1686: 1685: 1682: 1677: 1674: 1672: 1670: 1669: 1642: 1640: 1628: 1626: 1622: 1620: 1616: 1615: 1612: 1607: 1604: 1602: 1600: 1599: 1578: 1576: 1572: 1570: 1566: 1565: 1562: 1557: 1554: 1552: 1550: 1549: 1524: 1522: 1518: 1516: 1512: 1511: 1508: 1503: 1500: 1498: 1496: 1495: 1470: 1468: 1464: 1462: 1458: 1457: 1454: 1449: 1446: 1444: 1442: 1441: 1420: 1418: 1414: 1412: 1408: 1407: 1404: 1399: 1396: 1394: 1392: 1391: 1370: 1368: 1364: 1362: 1358: 1357: 1354: 1349: 1346: 1344: 1342: 1341: 1311: 1309: 1305: 1303: 1299: 1298: 1295: 1290: 1287: 1285: 1283: 1282: 1261: 1259: 1255: 1253: 1249: 1248: 1245: 1240: 1237: 1235: 1233: 1232: 1202: 1200: 1196: 1194: 1190: 1189: 1186: 1181: 1178: 1176: 1174: 1173: 1152: 1150: 1146: 1144: 1140: 1139: 1136: 1131: 1128: 1126: 1124: 1123: 1093: 1091: 1087: 1085: 1081: 1080: 1077: 1072: 1069: 1067: 1065: 1064: 1039: 1037: 1033: 1031: 1027: 1026: 1023: 1018: 1015: 1013: 1011: 1010: 998: 949: 948: 947: 946: 945: 906: 855:tectonic plates 812: 806: 754:Sir George Airy 731: 710: 701: 661:as the prime." 657:considered the 631:Nevil Maskelyne 422:Vatican Library 385: 383: 379: 377: 373: 372: 369: 364: 361: 359: 357: 356: 331:spherical Earth 327:Surya Siddhanta 288:Fortunate Isles 274: 270: 262: 258: 254: 239: 235: 223: 219: 190: 184: 150:(Bering Strait) 148:Strait of Anián 92:two hemispheres 60: 59: 58: 52: 46: 45: 44: 41: 28: 17: 12: 11: 5: 8861: 8851: 8850: 8845: 8840: 8835: 8820: 8819: 8807: 8795: 8783: 8771: 8759: 8757:Earth sciences 8747: 8724: 8723: 8713: 8706: 8699: 8692: 8687: 8682: 8677: 8672: 8665: 8660: 8655: 8650: 8640: 8635: 8630: 8625: 8620: 8613: 8608: 8603: 8598: 8588: 8583: 8578: 8573: 8568: 8563: 8558: 8553: 8548: 8543: 8538: 8533: 8528: 8523: 8518: 8513: 8508: 8503: 8498: 8491: 8486: 8481: 8476: 8471: 8466: 8461: 8456: 8451: 8446: 8441: 8436: 8431: 8426: 8421: 8416: 8411: 8406: 8401: 8396: 8391: 8386: 8381: 8376: 8371: 8366: 8361: 8356: 8351: 8346: 8341: 8336: 8331: 8326: 8321: 8316: 8311: 8306: 8301: 8296: 8291: 8286: 8281: 8276: 8271: 8266: 8261: 8256: 8251: 8246: 8241: 8236: 8231: 8226: 8221: 8216: 8211: 8206: 8201: 8196: 8191: 8184: 8179: 8174: 8167: 8162: 8157: 8150: 8145: 8140: 8133: 8128: 8123: 8110: 8105: 8100: 8095: 8090: 8083: 8076: 8069: 8062: 8055: 8046: 8039: 8032: 8025: 8018: 8009: 8002: 8001: 7998: 7997: 7986: 7985: 7978: 7971: 7963: 7954: 7953: 7951: 7950: 7945: 7940: 7938:Time metrology 7935: 7930: 7925: 7920: 7915: 7914: 7913: 7903: 7897: 7895: 7894:Related topics 7891: 7890: 7888: 7887: 7882: 7877: 7872: 7867: 7862: 7857: 7852: 7847: 7842: 7837: 7832: 7827: 7822: 7817: 7812: 7807: 7802: 7797: 7791: 7789: 7782: 7781: 7779: 7778: 7773: 7768: 7763: 7757: 7755: 7749: 7748: 7746: 7745: 7740: 7735: 7729: 7727: 7723: 7722: 7720: 7719: 7714: 7709: 7704: 7699: 7694: 7689: 7684: 7679: 7674: 7669: 7664: 7659: 7654: 7649: 7644: 7639: 7633: 7628: 7623: 7618: 7612: 7610: 7604: 7603: 7601: 7600: 7595: 7590: 7585: 7583:Dialing scales 7580: 7575: 7570: 7569: 7568: 7558: 7553: 7548: 7543: 7538: 7533: 7528: 7523: 7518: 7512: 7510: 7504: 7503: 7501: 7500: 7495: 7490: 7485: 7480: 7475: 7470: 7465: 7460: 7455: 7450: 7445: 7440: 7435: 7429: 7427: 7421: 7420: 7418: 7417: 7415:Prime meridian 7412: 7407: 7405:Ephemeris time 7401: 7399: 7395: 7394: 7381: 7379: 7377: 7376: 7374:180th meridian 7371: 7366: 7361: 7356: 7351: 7346: 7341: 7336: 7331: 7326: 7321: 7316: 7311: 7306: 7301: 7296: 7291: 7286: 7281: 7276: 7271: 7270: 7269: 7258: 7256: 7252: 7251: 7249: 7248: 7243: 7238: 7232: 7229: 7228: 7217: 7216: 7209: 7202: 7194: 7188: 7187: 7182: 7177: 7165: 7164:External links 7162: 7160: 7159: 7148: 7127: 7103: 7098: 7081: 7059: 7034: 7009: 6999: 6997: 6994: 6992: 6991: 6979: 6965: 6945: 6919: 6889: 6863: 6832: 6823:Orpheus Noster 6809: 6779: 6755: 6736: 6714: 6683: 6660: 6641: 6612: 6588: 6565: 6534: 6515: 6487: 6470: 6468:, PID: AH7372. 6458: 6456:, PID: HV1846. 6446: 6444:, PID: HV1847. 6434: 6415: 6403: 6391: 6365: 6338:(2): 303–340. 6313: 6301: 6275: 6253: 6230: 6184: 6168: 6142: 6126: 6100: 6065:(2): 101–135. 6049: 6040: 5998:(2): 101–135. 5975: 5963: 5951: 5925: 5906: 5876: 5864: 5823: 5792: 5774: 5757: 5750: 5732: 5720: 5692: 5673: 5671:Section 2.4.4. 5636: 5607: 5595: 5583: 5564: 5531: 5519: 5506:10.2307/295030 5500:(3): 298–311. 5482: 5467: 5447: 5412: 5387:10.1086/358709 5361: 5322: 5288: 5272: 5270: 5267: 5264: 5263: 5244: 5223: 5214: 5186: 5185: 5183: 5180: 5179: 5178: 5169: 5163: 5160:180th meridian 5157: 5151: 5143: 5140: 5137: 5136: 5130: 5126:180th meridian 5121: 5120: 5113: 5112: 5106: 5105: 5104: 5102: 5100: 5097: 5094: 5093: 5090: 5081: 5080: 5073: 5072: 5066: 5065: 5064: 5062: 5060: 5053: 5047: 5046: 5039: 5030: 5029: 5022: 5021: 5015: 5014: 5013: 5011: 5009: 5002: 4996: 4995: 4989: 4980: 4979: 4972: 4971: 4965: 4964: 4963: 4961: 4959: 4958:Approx. 59° E 4956: 4953: 4952: 4946: 4937: 4936: 4929: 4928: 4922: 4921: 4920: 4918: 4916: 4909: 4903: 4902: 4900: 4891: 4890: 4883: 4882: 4876: 4875: 4874: 4872: 4870: 4863: 4857: 4856: 4853: 4844: 4843: 4836: 4835: 4829: 4828: 4827: 4825: 4823: 4816: 4808: 4807: 4805: 4796: 4795: 4788: 4787: 4781: 4780: 4779: 4777: 4772: 4765: 4759: 4758: 4747: 4738: 4737: 4730: 4729: 4723: 4722: 4721: 4719: 4716: 4709: 4703: 4702: 4671:prime meridian 4667: 4658: 4657: 4650: 4649: 4643: 4642: 4641: 4639: 4632: 4625: 4619: 4618: 4616: 4607: 4606: 4599: 4598: 4592: 4591: 4590: 4588: 4583: 4576: 4570: 4569: 4554: 4551: 4544: 4538: 4537: 4522: 4513: 4512: 4505: 4504: 4498: 4497: 4496: 4494: 4491: 4484: 4478: 4477: 4471: 4462: 4461: 4454: 4453: 4447: 4446: 4445: 4443: 4441: 4434: 4428: 4427: 4421: 4412: 4411: 4404: 4403: 4397: 4396: 4395: 4393: 4390: 4383: 4377: 4376: 4374: 4365: 4364: 4357: 4356: 4350: 4349: 4348: 4346: 4344: 4337: 4331: 4330: 4325: 4323: 4316: 4310: 4309: 4306: 4297: 4296: 4289: 4288: 4282: 4281: 4280: 4278: 4270: 4263: 4257: 4256: 4246: 4237: 4236: 4229: 4228: 4222: 4221: 4220: 4218: 4213: 4206: 4200: 4199: 4197: 4195: 4188: 4182: 4181: 4179: 4170: 4169: 4162: 4161: 4155: 4154: 4153: 4151: 4149: 4142: 4136: 4135: 4128: 4126: 4119: 4113: 4112: 4110: 4105: 4098: 4092: 4091: 4089: 4080: 4079: 4072: 4071: 4065: 4064: 4063: 4061: 4059: 4052: 4046: 4045: 4043: 4034: 4033: 4026: 4025: 4019: 4018: 4017: 4015: 4013:Paris meridian 4010: 4003: 3997: 3996: 3994: 3989: 3981: 3980: 3979:Airy Meridian 3977: 3972: 3964: 3963: 3957: 3952: 3945: 3941: 3940: 3934: 3930:Prime meridian 3925: 3924: 3917: 3916: 3910: 3909: 3908: 3906: 3903: 3896: 3890: 3889: 3887: 3878: 3877: 3870: 3869: 3863: 3862: 3861: 3859: 3857: 3850: 3844: 3843: 3836: 3827: 3826: 3819: 3818: 3812: 3811: 3810: 3808: 3805: 3798: 3792: 3791: 3789: 3780: 3779: 3772: 3771: 3765: 3764: 3763: 3761: 3759: 3752: 3746: 3745: 3742: 3733: 3732: 3725: 3724: 3718: 3717: 3716: 3714: 3709: 3702: 3696: 3695: 3693: 3684: 3683: 3676: 3675: 3669: 3668: 3667: 3665: 3663:Ferro meridian 3660: 3643: 3642:Canary Islands 3634: 3633: 3630:Pierre Janssen 3626: 3617: 3616: 3609: 3608: 3602: 3601: 3600: 3598: 3596: 3589: 3582: 3581: 3579: 3570: 3569: 3562: 3561: 3555: 3554: 3553: 3551: 3549: 3542: 3540:Rio de Janeiro 3536: 3535: 3533: 3524: 3523: 3516: 3515: 3509: 3508: 3507: 3505: 3503: 3496: 3490: 3489: 3487: 3482: 3474: 3473: 3471: 3466: 3450: 3449: 3447: 3442: 3425:48.0″ W, 77°03 3418: 3417: 3415: 3406: 3405: 3398: 3397: 3391: 3390: 3389: 3387: 3382: 3367: 3361: 3360: 3357:Pierre Janssen 3353: 3344: 3343: 3336: 3335: 3329: 3328: 3327: 3325: 3323: 3316: 3310: 3309: 3306: 3303: 3302:Meridian name 3300: 3297: 3290: 3287: 3286: 3285: 3275: 3266:Like Jupiter, 3264: 3254: 3253: 3252: 3242: 3232: 3226: 3213:Galilean moons 3205: 3194: 3187: 3169: 3158: 3147: 3128: 3102:Two different 3078: 3075: 3072: 3071: 3062: 3057: 3042:-90.000; 0.000 3015: 3014: 2993: 2988: 2973:-69.600; 0.000 2946: 2945: 2940: 2938:Southern Ocean 2935: 2926:Southern Ocean 2920:-60.000; 0.000 2893: 2892: 2887: 2872:-57.217; 0.000 2845: 2844: 2830: 2815:-51.717; 0.000 2788: 2787: 2776: 2734: 2733: 2728: 2686: 2685: 2676: 2674:Atlantic Ocean 2671: 2629: 2628: 2573: 2560: 2518: 2517: 2514: 2501: 2459: 2458: 2455: 2442: 2400: 2399: 2396: 2383: 2341: 2340: 2333: 2320: 2278: 2277: 2271: 2258: 2216: 2215: 2205: 2192: 2150: 2149: 2140: 2135: 2126:EEZ of Algeria 2093: 2092: 2083: 2078: 2036: 2035: 2025: 2012: 1970: 1969: 1956: 1951: 1909: 1908: 1898: 1885: 1843: 1842: 1832: 1819: 1777: 1776: 1767: 1762: 1720: 1719: 1713: 1708: 1666: 1665: 1651: 1649:United Kingdom 1638: 1629:United Kingdom 1596: 1595: 1593: 1588: 1546: 1545: 1543: 1534: 1492: 1491: 1489: 1480: 1438: 1437: 1435: 1430: 1388: 1387: 1385: 1380: 1338: 1337: 1335: 1321: 1279: 1278: 1276: 1271: 1229: 1228: 1226: 1212: 1170: 1169: 1167: 1162: 1120: 1119: 1117: 1103: 1061: 1060: 1058: 1049: 1007: 1006: 1003: 1000: 999:(approximate) 944: 943: 938: 933: 928: 922: 909: 908: 907: 905: 904:List of places 902: 871:transit circle 818:and later the 808:Main article: 805: 802: 794:mean sea level 771:Paris meridian 727:Main article: 709: 706: 700: 697: 678:Paris meridian 659:Paris meridian 620:United Kingdom 602:was prime, in 600:Paris meridian 577:Thomas Godfrey 561:John Flamsteed 380:28.900; 76.633 335:prime meridian 312:lunar eclipses 296:Canary Islands 205:Canary Islands 183: 180: 156:tidally locked 144:Atlantic Ocean 80:180th meridian 64:prime meridian 48: 47: 40: 39: 33: 32: 31: 15: 9: 6: 4: 3: 2: 8860: 8849: 8846: 8844: 8841: 8839: 8836: 8834: 8831: 8830: 8828: 8818: 8808: 8806: 8796: 8794: 8784: 8782: 8777: 8772: 8770: 8760: 8758: 8748: 8746: 8736: 8735: 8732: 8718: 8711: 8704: 8697: 8690: 8685: 8680: 8675: 8670: 8669: 8663: 8658: 8653: 8648: 8647: 8643: 8638: 8633: 8628: 8623: 8618: 8617: 8611: 8606: 8601: 8596: 8595: 8591: 8586: 8581: 8576: 8571: 8566: 8561: 8556: 8551: 8546: 8541: 8536: 8531: 8526: 8521: 8516: 8511: 8506: 8501: 8496: 8495: 8489: 8484: 8479: 8474: 8469: 8464: 8459: 8454: 8449: 8444: 8439: 8434: 8429: 8424: 8419: 8414: 8409: 8404: 8399: 8394: 8389: 8384: 8379: 8374: 8369: 8364: 8359: 8354: 8349: 8344: 8339: 8334: 8329: 8324: 8319: 8314: 8309: 8304: 8299: 8294: 8289: 8284: 8279: 8274: 8269: 8264: 8259: 8254: 8249: 8244: 8239: 8234: 8229: 8224: 8219: 8214: 8209: 8204: 8199: 8194: 8189: 8188: 8182: 8177: 8172: 8171: 8165: 8160: 8155: 8154: 8148: 8143: 8138: 8137: 8131: 8126: 8121: 8120: 8117: 8114: 8108: 8103: 8102:Arctic Circle 8098: 8093: 8088: 8087: 8081: 8074: 8072:Arctic Circle 8067: 8060: 8053: 8052: 8044: 8037: 8035:Arctic Circle 8030: 8023: 8016: 8015: 8007: 7999: 7995: 7991: 7984: 7979: 7977: 7972: 7970: 7965: 7964: 7961: 7949: 7946: 7944: 7941: 7939: 7936: 7934: 7931: 7929: 7926: 7924: 7921: 7919: 7916: 7912: 7909: 7908: 7907: 7904: 7902: 7899: 7898: 7896: 7892: 7886: 7883: 7881: 7878: 7876: 7873: 7871: 7868: 7866: 7863: 7861: 7858: 7856: 7853: 7851: 7848: 7846: 7843: 7841: 7838: 7836: 7833: 7831: 7828: 7826: 7823: 7821: 7818: 7816: 7813: 7811: 7808: 7806: 7803: 7801: 7798: 7796: 7793: 7792: 7790: 7788: 7787:units of time 7783: 7777: 7776:Sidereal time 7774: 7772: 7769: 7767: 7764: 7762: 7761:Galactic year 7759: 7758: 7756: 7754: 7750: 7744: 7741: 7739: 7736: 7734: 7731: 7730: 7728: 7724: 7718: 7717:Weekday names 7715: 7713: 7710: 7708: 7707:Tropical year 7705: 7703: 7700: 7698: 7695: 7693: 7690: 7688: 7685: 7683: 7680: 7678: 7675: 7673: 7672:Intercalation 7670: 7668: 7665: 7663: 7660: 7658: 7655: 7653: 7650: 7648: 7645: 7643: 7640: 7638:(lunar Hijri) 7637: 7634: 7632: 7629: 7627: 7624: 7622: 7619: 7617: 7614: 7613: 7611: 7609: 7605: 7599: 7596: 7594: 7591: 7589: 7586: 7584: 7581: 7579: 7576: 7574: 7571: 7567: 7564: 7563: 7562: 7559: 7557: 7554: 7552: 7549: 7547: 7544: 7542: 7539: 7537: 7534: 7532: 7529: 7527: 7524: 7522: 7519: 7517: 7514: 7513: 7511: 7509: 7505: 7499: 7496: 7494: 7491: 7489: 7486: 7484: 7481: 7479: 7478:Time dilation 7476: 7474: 7471: 7469: 7466: 7464: 7461: 7459: 7456: 7454: 7451: 7449: 7446: 7444: 7441: 7439: 7436: 7434: 7431: 7430: 7428: 7426: 7422: 7416: 7413: 7411: 7408: 7406: 7403: 7402: 7400: 7396: 7391: 7385: 7375: 7372: 7370: 7367: 7365: 7362: 7360: 7357: 7355: 7352: 7350: 7347: 7345: 7342: 7340: 7337: 7335: 7332: 7330: 7327: 7325: 7322: 7320: 7317: 7315: 7314:24-hour clock 7312: 7310: 7309:12-hour clock 7307: 7305: 7302: 7300: 7297: 7295: 7292: 7290: 7287: 7285: 7282: 7280: 7277: 7275: 7272: 7268: 7265: 7264: 7263: 7260: 7259: 7257: 7253: 7247: 7244: 7242: 7239: 7237: 7234: 7233: 7230: 7226: 7222: 7215: 7210: 7208: 7203: 7201: 7196: 7195: 7192: 7186: 7183: 7181: 7178: 7175: 7171: 7168: 7167: 7156: 7155: 7149: 7138: 7134: 7133: 7128: 7117: 7113: 7109: 7104: 7101: 7095: 7090: 7089: 7082: 7071: 7067: 7066: 7060: 7048: 7044: 7040: 7035: 7023: 7019: 7015: 7010: 7006: 7001: 7000: 6988: 6983: 6977: 6975: 6969: 6962: 6958: 6955: 6949: 6933: 6929: 6923: 6907: 6903: 6899: 6893: 6877: 6873: 6867: 6851: 6847: 6843: 6836: 6828: 6824: 6820: 6813: 6796: 6792: 6791: 6783: 6777: 6773: 6772: 6768: 6765: 6759: 6752: 6748: 6745: 6740: 6733: 6729: 6726: 6718: 6708: 6707:84-505-7563-X 6704: 6700: 6696: 6693: 6687: 6680: 6676: 6672: 6669: 6664: 6648: 6644: 6638: 6634: 6633: 6625: 6623: 6621: 6619: 6617: 6609: 6605: 6601: 6598: 6592: 6581: 6580: 6575: 6569: 6553: 6549: 6543: 6541: 6539: 6531: 6527: 6524: 6519: 6512: 6508: 6504: 6501: 6496: 6494: 6492: 6484: 6479: 6477: 6475: 6467: 6462: 6455: 6450: 6443: 6438: 6431: 6427: 6424: 6419: 6412: 6407: 6400: 6395: 6379: 6375: 6369: 6361: 6357: 6353: 6349: 6345: 6341: 6337: 6333: 6332: 6327: 6323: 6317: 6310: 6305: 6289: 6285: 6279: 6263: 6257: 6241: 6234: 6227: 6223: 6219: 6215: 6211: 6207: 6203: 6199: 6195: 6188: 6181: 6177: 6172: 6156: 6152: 6146: 6139: 6135: 6130: 6114: 6110: 6104: 6096: 6092: 6088: 6084: 6080: 6076: 6072: 6068: 6064: 6060: 6053: 6044: 6025: 6021: 6017: 6013: 6009: 6005: 6001: 5997: 5993: 5986: 5979: 5972: 5967: 5960: 5955: 5939: 5935: 5929: 5922: 5918: 5915: 5910: 5894: 5890: 5886: 5880: 5873: 5868: 5859: 5854: 5850: 5846: 5842: 5838: 5834: 5827: 5811: 5807: 5803: 5796: 5788: 5784: 5778: 5771: 5766: 5764: 5762: 5753: 5751:9780850660937 5747: 5743: 5736: 5729: 5724: 5708: 5704: 5703: 5696: 5689: 5685: 5682: 5677: 5653: 5646: 5640: 5624: 5620: 5614: 5612: 5604: 5599: 5592: 5587: 5581: 5577: 5574: 5568: 5553: 5552: 5545: 5544:Easter Island 5541: 5535: 5528: 5523: 5515: 5511: 5507: 5503: 5499: 5495: 5494: 5486: 5478: 5474: 5470: 5468:9780697000071 5464: 5460: 5459: 5451: 5443: 5439: 5435: 5431: 5427: 5423: 5416: 5408: 5404: 5400: 5396: 5392: 5388: 5384: 5380: 5376: 5372: 5365: 5358: 5342: 5335: 5334: 5326: 5319: 5306: 5302: 5298: 5292: 5285: 5280: 5278: 5273: 5260: 5255: 5248: 5237: 5227: 5218: 5211: 5206: 5201: 5197: 5196:legua náutica 5191: 5187: 5173: 5170: 5167: 5164: 5161: 5158: 5155: 5152: 5149: 5146: 5145: 5135: 5131: 5124: 5110: 5103: 5101: 5098: 5096: 5095: 5091: 5084: 5070: 5063: 5061: 5054: 5052: 5049: 5048: 5044: 5043:Time in India 5040: 5033: 5019: 5012: 5010: 5003: 5001: 4998: 4997: 4993: 4990: 4983: 4969: 4962: 4960: 4957: 4955: 4954: 4951: 4947: 4940: 4926: 4919: 4917: 4910: 4908: 4905: 4904: 4901: 4894: 4880: 4873: 4871: 4864: 4862: 4859: 4858: 4854: 4847: 4833: 4826: 4824: 4817: 4814: 4810: 4809: 4806: 4799: 4785: 4778: 4776: 4773: 4766: 4764: 4761: 4760: 4756: 4752: 4748: 4741: 4727: 4720: 4717: 4710: 4708: 4705: 4704: 4700: 4695: 4689: 4684: 4680: 4676: 4672: 4668: 4661: 4647: 4640: 4637: 4633: 4626: 4624: 4621: 4620: 4617: 4610: 4596: 4589: 4587: 4584: 4577: 4575: 4572: 4571: 4567: 4563: 4559: 4555: 4552: 4545: 4543: 4540: 4539: 4535: 4531: 4530:Marcin Bylica 4527: 4526:Regiomontanus 4523: 4516: 4502: 4492: 4485: 4483: 4480: 4479: 4476: 4472: 4465: 4451: 4444: 4442: 4435: 4433: 4430: 4429: 4426: 4422: 4415: 4401: 4394: 4391: 4384: 4382: 4379: 4378: 4375: 4368: 4354: 4347: 4345: 4338: 4336: 4333: 4332: 4329: 4326: 4324: 4317: 4315: 4312: 4311: 4307: 4300: 4286: 4277: 4276: 4271: 4264: 4262: 4259: 4258: 4255: 4254:Bering Strait 4251: 4247: 4240: 4226: 4219: 4217: 4214: 4207: 4205: 4202: 4201: 4198: 4196: 4189: 4187: 4184: 4183: 4180: 4173: 4159: 4150: 4143: 4141: 4138: 4137: 4133: 4129: 4127: 4120: 4118: 4115: 4114: 4111: 4109: 4106: 4099: 4097: 4094: 4093: 4090: 4083: 4069: 4060: 4053: 4051: 4048: 4047: 4044: 4037: 4023: 4016: 4014: 4011: 4004: 4002: 3999: 3998: 3995: 3993: 3990: 3983: 3982: 3978: 3976: 3973: 3966: 3965: 3961: 3958: 3956: 3953: 3946: 3942: 3939: 3935: 3928: 3914: 3904: 3897: 3895: 3892: 3891: 3888: 3881: 3867: 3860: 3858: 3851: 3849: 3846: 3845: 3841: 3837: 3830: 3816: 3809: 3806: 3799: 3797: 3794: 3793: 3790: 3783: 3769: 3762: 3760: 3753: 3751: 3748: 3747: 3743: 3736: 3722: 3715: 3713: 3710: 3703: 3701: 3698: 3697: 3694: 3687: 3673: 3666: 3664: 3661: 3644: 3639: 3636: 3635: 3631: 3627: 3620: 3606: 3599: 3597: 3590: 3587: 3584: 3583: 3580: 3573: 3559: 3552: 3550: 3543: 3541: 3538: 3537: 3534: 3527: 3513: 3506: 3504: 3497: 3495: 3492: 3491: 3488: 3486: 3483: 3476: 3475: 3472: 3470: 3467: 3452: 3451: 3448: 3446: 3443: 3420: 3419: 3416: 3409: 3395: 3386: 3383: 3368: 3366: 3362: 3358: 3354: 3347: 3333: 3326: 3324: 3317: 3315: 3314:Bering Strait 3312: 3311: 3307: 3304: 3301: 3298: 3295: 3294: 3283: 3279: 3276: 3273: 3269: 3265: 3262: 3258: 3255: 3251:is at 326° W. 3250: 3246: 3243: 3240: 3236: 3233: 3230: 3227: 3224: 3220: 3217: 3216: 3214: 3209: 3206: 3203: 3199: 3195: 3192: 3188: 3185: 3183: 3178: 3174: 3170: 3167: 3163: 3159: 3156: 3152: 3148: 3145: 3141: 3137: 3133: 3129: 3126: 3122: 3118: 3114: 3110: 3105: 3101: 3100: 3099: 3097: 3090: 3084: 3070: 3066: 3063: 3061: 3054: 3017: 3016: 3013: 3001: 2997: 2994: 2992: 2985: 2948: 2947: 2944: 2939: 2932: 2895: 2894: 2891: 2884: 2847: 2846: 2842: 2838: 2837:Bouvet Island 2834: 2827: 2790: 2789: 2785: 2781: 2773: 2736: 2735: 2732: 2725: 2688: 2687: 2684: 2680: 2677: 2675: 2668: 2631: 2630: 2625: 2587: 2582: 2578: 2574: 2572: 2557: 2545:10.617; 0.000 2520: 2519: 2515: 2513: 2498: 2486:10.967; 0.000 2461: 2460: 2456: 2454: 2439: 2427:11.100; 0.000 2402: 2401: 2397: 2395: 2380: 2368:11.117; 0.000 2343: 2342: 2338: 2334: 2332: 2317: 2305:15.000; 0.000 2280: 2279: 2276: 2272: 2270: 2255: 2243:21.867; 0.000 2218: 2217: 2214: 2210: 2206: 2204: 2189: 2177:35.833; 0.000 2152: 2151: 2148: 2144: 2141: 2139: 2132: 2120:37.017; 0.000 2095: 2094: 2091: 2087: 2084: 2082: 2075: 2063:38.633; 0.000 2038: 2037: 2034: 2030: 2026: 2024: 2009: 1997:38.867; 0.000 1972: 1971: 1968: 1964: 1960: 1957: 1955: 1948: 1936:39.933; 0.000 1911: 1910: 1907: 1903: 1899: 1897: 1882: 1870:42.683; 0.000 1845: 1844: 1841: 1837: 1833: 1831: 1816: 1804:49.333; 0.000 1779: 1778: 1775: 1771: 1768: 1766: 1759: 1753:EEZ of France 1747:50.233; 0.000 1722: 1721: 1717: 1714: 1712: 1705: 1693:50.783; 0.000 1668: 1667: 1664: 1660: 1656: 1652: 1650: 1635: 1623:53.767; 0.000 1598: 1597: 1594: 1592: 1585: 1573:61.000; 0.000 1548: 1547: 1544: 1542: 1541:Great Britain 1538: 1531: 1519:63.483; 0.000 1494: 1493: 1490: 1488: 1484: 1477: 1471:EEZ of Norway 1465:64.700; 0.000 1440: 1439: 1436: 1434: 1427: 1415:69.117; 0.000 1390: 1389: 1386: 1384: 1383:Norwegian Sea 1377: 1371:Norwegian Sea 1365:72.883; 0.000 1340: 1339: 1336: 1333: 1329: 1325: 1318: 1306:73.733; 0.000 1281: 1280: 1277: 1275: 1268: 1256:76.183; 0.000 1231: 1230: 1227: 1224: 1220: 1216: 1209: 1197:80.483; 0.000 1172: 1171: 1168: 1166: 1165:Greenland Sea 1159: 1153:Greenland Sea 1147:81.650; 0.000 1122: 1121: 1118: 1115: 1111: 1107: 1100: 1088:85.767; 0.000 1063: 1062: 1059: 1057: 1053: 1046: 1034:90.000; 0.000 1009: 1008: 995: 989: 984: 977: 972: 964: 960: 958: 954: 942: 939: 937: 934: 932: 929: 927: 924: 923: 921: 920: 915: 914:OpenStreetMap 912: 901: 899: 895: 891: 887: 883: 879: 874: 872: 868: 864: 860: 856: 851: 849: 845: 841: 837: 833: 829: 825: 821: 817: 811: 801: 799: 798:United States 795: 791: 787: 783: 779: 774: 772: 767: 766:Edmond Halley 763: 759: 755: 751: 746: 744: 743:United States 740: 736: 730: 723: 719: 714: 705: 696: 694: 690: 686: 681: 679: 675: 674:Bering Strait 671: 667: 662: 660: 656: 655: 650: 646: 642: 638: 637: 632: 627: 625: 621: 617: 613: 610:meridian, in 609: 605: 601: 597: 593: 589: 584: 582: 578: 575:developed by 574: 570: 566: 565:Edmund Halley 562: 558: 554: 553:John Harrison 550: 545: 543: 539: 535: 530: 526: 525:Fuerteventura 522: 514: 510: 505: 498: 494: 489: 485: 483: 479: 475: 471: 467: 466:Diogo Ribeiro 463: 459: 455: 451: 447: 443: 439: 435: 431: 423: 419: 418:Diogo Ribeiro 415: 412: 408: 407:William Grigg 404: 400: 398: 392: 354: 350: 346: 342: 341: 336: 332: 328: 324: 320: 319:standard time 315: 313: 309: 305: 301: 297: 293: 289: 284: 282: 281: 268: 252: 249: 245: 233: 229: 217: 214: 206: 202: 198: 194: 189: 179: 177: 173: 168: 163: 161: 157: 149: 145: 141: 137: 133: 129: 128: 123: 119: 115: 113: 109: 105: 101: 97: 93: 89: 85: 81: 77: 73: 69: 65: 56: 51: 37: 30: 26: 22: 8817:Solar System 8667: 8644: 8615: 8592: 8492: 8186: 8169: 8152: 8135: 8111: 8084: 8047: 8010: 7923:Decimal time 7652:Astronomical 7531:Complication 7526:Atomic clock 7414: 7173: 7153: 7141:, retrieved 7131: 7120:, retrieved 7111: 7087: 7074:, retrieved 7070:the original 7064: 7051:. Retrieved 7042: 7026:. Retrieved 7017: 7004: 6987:Burgess 1860 6982: 6973: 6968: 6948: 6936:. Retrieved 6922: 6910:. Retrieved 6901: 6892: 6880:. Retrieved 6866: 6854:. Retrieved 6850:the original 6845: 6835: 6826: 6822: 6812: 6799:. Retrieved 6793:(in Latin). 6789: 6782: 6762: 6758: 6739: 6717: 6711:(in Spanish) 6686: 6678: 6663: 6651:. Retrieved 6631: 6607: 6591: 6577: 6568: 6556:. Retrieved 6518: 6510: 6461: 6449: 6437: 6418: 6406: 6398: 6394: 6382:. Retrieved 6378:the original 6368: 6335: 6329: 6325: 6316: 6304: 6292:. Retrieved 6278: 6266:. Retrieved 6256: 6246:13 September 6244:. Retrieved 6233: 6201: 6197: 6187: 6179: 6171: 6159:. Retrieved 6155:the original 6145: 6137: 6129: 6117:. Retrieved 6113:the original 6103: 6062: 6058: 6052: 6043: 6033:26 September 6031:. Retrieved 6024:the original 5995: 5991: 5978: 5966: 5954: 5942:. Retrieved 5928: 5909: 5897:. Retrieved 5888: 5879: 5867: 5843:(12): 1263. 5840: 5836: 5826: 5814:. Retrieved 5805: 5795: 5786: 5777: 5741: 5735: 5723: 5711:. Retrieved 5701: 5695: 5690:page i, 1998 5676: 5659:. Retrieved 5639: 5627:. Retrieved 5598: 5586: 5567: 5556:, retrieved 5550: 5534: 5522: 5497: 5491: 5485: 5457: 5450: 5425: 5421: 5415: 5378: 5374: 5364: 5355: 5348:, retrieved 5332: 5325: 5316: 5309:. Retrieved 5300: 5291: 5247: 5226: 5217: 5195: 5190: 4674: 4670: 4565: 4273:Meridian of 4272: 4248:Used in the 4130:Through the 3494:Philadelphia 3429:02.3″, 77°03 3181: 3093: 2761:0.000; 0.000 2713:1.967; 0.000 2656:5.617; 0.000 2613:7.767; 0.000 2331:Burkina Faso 2311:Burkina Faso 1056:Arctic Ocean 997:Co-ordinates 950: 918: 917: 910: 875: 852: 813: 775: 747: 732: 702: 682: 680:until 1911. 663: 652: 648: 635: 628: 591: 585: 569:lunar method 546: 518: 429: 427: 348: 338: 323:astronomical 318: 316: 285: 278: 216:Eratosthenes 210: 164: 153: 125: 88:great circle 63: 61: 29: 8805:Outer space 8793:Spaceflight 7933:System time 7928:Metric time 7647:Solar Hijri 7573:Water clock 7556:Radio clock 7488:Time domain 7468:Proper time 7354:Leap second 7236:Chronometry 7143:11 December 6996:Works cited 6938:27 December 6902:NineO'Clock 6856:27 December 6829:(4): 64–87. 6801:30 December 6483:Hooker 2006 5899:29 November 5872:Dolan 2013b 5770:Dolan 2013a 5713:30 November 5629:28 December 5527:Hooker 2006 5311:13 December 5200:Roman miles 5166:Null Island 4275:Monte Mario 3971:05.3101″ W 3140:retrogrades 3040: / 2971: / 2918: / 2870: / 2813: / 2784:Null Island 2759: / 2711: / 2654: / 2611: / 2543: / 2484: / 2425: / 2366: / 2303: / 2241: / 2175: / 2118: / 2061: / 1995: / 1934: / 1868: / 1802: / 1745: / 1691: / 1621: / 1571: / 1517: / 1463: / 1413: / 1363: / 1304: / 1254: / 1195: / 1145: / 1086: / 1032: / 606:it was the 581:John Hadley 462:Padron Real 414:Padron Real 397:Kurukshetra 378: / 84:360°-system 70:(a line of 8827:Categories 7948:Timekeeper 7901:Chronology 7885:Millennium 7771:Precession 7677:Julian day 7498:T-symmetry 7359:Solar time 7329:Civil time 7122:13 January 6882:3 February 6790:Stellarium 6722:(in Dutch) 6653:8 December 6579:Geographia 6204:(22): 22, 6161:22 October 6119:22 October 5728:Howse 1997 5558:13 January 5477:1101220811 5269:References 5254:Stellarium 5242:40.1247″N. 4992:Maimonides 4950:Mecca Time 4707:Alexandria 4528:, used by 4314:Copenhagen 4132:Westerkerk 4009:14.025″ E 3758:54.862″ W 3144:perihelion 3127:, England. 3125:Lancashire 3081:See also: 3069:South Pole 3060:Antarctica 3046: ( 2991:Antarctica 2979:Antarctica 2977: ( 2924: ( 2876: ( 2819: ( 2765: ( 2717: ( 2660: ( 2619:Lake Volta 2617: ( 2586:Lake Volta 2577:Bunkpurugu 2549: ( 2490: ( 2431: ( 2372: ( 2309: ( 2247: ( 2181: ( 2124: ( 2067: ( 2001: ( 1940: ( 1874: ( 1808: ( 1751: ( 1697: ( 1659:Peacehaven 1627: ( 1577: ( 1523: ( 1469: ( 1419: ( 1369: ( 1310: ( 1260: ( 1201: ( 1151: ( 1092: ( 1052:North Pole 1040:North Pole 1038: ( 957:South Pole 953:North Pole 796:under the 778:plumb line 616:Copenhagen 497:Cape Verde 458:Cape Verde 430:Geographia 428:Ptolemy's 384: ( 308:Winchester 280:Geographia 248:geographer 232:Hipparchus 228:Alexandria 186:See also: 176:retrograde 8769:Astronomy 8745:Geography 7994:meridians 7845:Fortnight 7692:Lunisolar 7682:Leap year 7616:Gregorian 7566:stopwatch 7541:Hourglass 7521:Astrarium 7438:Spacetime 7369:Time zone 7246:Metrology 7225:standards 7053:6 January 7028:6 January 6384:28 August 6226:189844155 6095:189842666 6087:0923-2958 6020:189842666 5669:(4.89 MB) 5403:145178197 4948:See also 4861:Jerusalem 4822:03.69″ E 4771:42.09″ E 4675:Varadinum 4550:21.43″ E 4432:Stockholm 4381:Pressburg 4328:Rundetårn 4322:32.25″ E 4117:Amsterdam 3962:Meridian 3951:05.33″ W 3944:Greenwich 3856:16.58″ W 3296:Locality 2029:El Verger 1663:Greenwich 1591:North Sea 1579:North Sea 1328:Jan Mayen 1110:Greenland 978:, France. 884:, and of 850:(ITRFs). 538:El Hierro 519:In 1541, 325:treatise 86:) form a 72:longitude 7906:Duration 7880:Saeculum 7860:Olympiad 7702:Solstice 7631:Holocene 7608:Calendar 7508:Horology 7299:ISO 8601 7294:ISO 31-1 7137:archived 7116:archived 7047:Archived 7022:Archived 6957:Archived 6932:Archived 6906:Archived 6904:. 2015. 6876:Archived 6872:"Oradea" 6795:Archived 6767:Archived 6764:meridian 6747:Archived 6728:Archived 6695:Archived 6671:Archived 6647:Archived 6600:Archived 6558:28 March 6552:Archived 6526:Archived 6503:Archived 6466:NGS 2016 6454:NGS 2016 6442:NGS 2016 6426:Archived 6360:44208045 6288:Archived 5938:Archived 5917:Archived 5893:Archived 5810:Archived 5707:Archived 5684:Archived 5652:Archived 5623:Archived 5576:Archived 5407:Archived 5350:6 August 5341:archived 5305:Archived 5238:is 51°28 5142:See also 4869:47.1″ E 4755:Almagest 4683:Columbus 4564:'s work 4440:29.8″ E 4423:Used by 4269:08.4″ E 4204:Florence 4194:22.5″ E 4058:4.71″ E 4050:Brussels 3902:19.0″ W 3804:35.4" W 3700:Tenerife 3588:/ Azores 3308:Comment 3245:Callisto 3235:Ganymede 3182:Viking 1 3113:sunspots 2337:Cinkassé 1840:Gavarnie 1219:Svalbard 990:, Ghana. 737:held in 529:Ortelius 521:Mercator 464:made by 450:Portugal 349:Rohitaka 292:Atlantic 242:BCE) in 226:BCE) in 172:prograde 98:and the 68:meridian 57:on Earth 8833:Geodesy 8731:Portals 8086:Equator 8050:Equator 8013:Equator 7875:Century 7865:Lustrum 7795:Instant 7667:Equinox 7636:Islamic 7578:Sundial 7443:Chronon 7076:28 June 6912:26 June 6679:El País 6574:Ptolemy 6340:Bibcode 6326:Galileo 6268:25 June 6206:Bibcode 6067:Bibcode 6000:Bibcode 5944:27 July 5845:Bibcode 5816:14 June 5661:23 July 5442:2562946 5055:136° 14 4751:Ptolemy 4473:At the 4096:Antwerp 3988:00.00″ 3960:Bradley 3268:Neptune 3208:Jupiter 3202:Claudia 3198:4 Vesta 3136:Hun Kal 3132:Mercury 3000:claimed 2955:69°36′S 2854:57°13′S 2797:51°43′S 2780:Equator 2767:Equator 2527:10°37′N 2468:10°58′N 2287:15°00′N 2225:21°52′N 2203:Algeria 2183:Algeria 2159:35°50′N 2147:Algeria 2045:38°38′N 1979:38°52′N 1918:39°56′N 1852:42°41′N 1786:49°20′N 1729:50°14′N 1675:50°47′N 1605:53°46′N 1501:63°29′N 1447:64°42′N 1347:72°53′N 1288:73°44′N 1238:76°11′N 1179:80°29′N 1129:81°39′N 1114:Denmark 1070:85°46′N 988:Somanya 720:at the 687:. The 612:Denmark 604:Prussia 542:Delisle 495:, with 454:leagues 434:Bologna 411:Spanish 365:76°38′E 362:28°54′N 267:Ptolemy 197:Ptolemy 182:History 160:equator 142:in the 138:in the 124:in his 74:) in a 53:Modern 7870:Decade 7825:Moment 7820:Minute 7815:Second 7785:Other 7642:Julian 7621:Hebrew 7267:offset 7096:  6705:  6639:  6358:  6294:24 May 6242:. NASA 6224:  6093:  6085:  6018:  5748:  5667:  5514:295030 5512:  5475:  5465:  5440:  5401:  5395:330729 5393:  5205:stades 5099:~ 180 5004:75° 47 5000:Ujjain 4915:34″ E 4911:39° 49 4865:35° 13 4818:31° 08 4767:30° 19 4711:29° 53 4631:16″ E 4627:21° 55 4582:42″ E 4578:21° 00 4574:Warsaw 4546:19° 57 4542:Kraków 4490:37″ E 4486:19° 03 4436:18° 03 4389:03″ E 4385:17° 06 4339:14° 15 4335:Naples 4318:12° 34 4265:12° 27 4190:10° 43 4144:10° 24 3848:Madrid 3750:Lisbon 3708:22″ W 3659:46″ W 3655:17° 39 3645:18° 03 3595:32″ W 3591:25° 40 3548:19″ W 3544:43° 10 3502:12″ W 3498:75° 10 3318:168°30 3305:Image 3282:Charon 3272:Triton 3261:Saturn 3219:Europa 3184:lander 3177:Airy-0 3024:90°0′S 3012:Norway 3009:  2902:60°0′S 2841:Norway 2695:1°58′N 2638:5°37′N 2595:7°46′N 2568:  2509:  2450:  2409:11°6′N 2391:  2350:11°7′N 2328:  2266:  2209:Stidia 2200:  2102:37°1′N 2020:  1893:  1830:France 1827:  1810:France 1774:France 1646:  1555:61°0′N 1487:Norway 1397:69°7′N 1332:Norway 1223:Norway 1016:90°0′N 1005:Notes 863:denote 830:, and 608:Berlin 596:France 588:Europe 573:octant 474:Azores 353:Rohtak 347:, and 345:Ujjain 340:Avanti 304:Africa 275:  271:  263:  259:  255:  253:(64/63 251:Strabo 244:Rhodes 240:  236:  230:, and 224:  220:  140:Azores 94:: the 8781:Stars 8716:45x90 8709:45x90 8702:45x90 8695:45x90 7911:music 7850:Month 7810:Jiffy 7805:Shake 7800:Flick 7697:Solar 7687:Lunar 7662:Epact 7626:Hindu 7561:Watch 7516:Clock 6976:11:17 6606:, in 6511:WIRED 6356:S2CID 6222:S2CID 6091:S2CID 6027:(PDF) 6016:S2CID 5988:(PDF) 5655:(PDF) 5648:(PDF) 5538:e.g. 5510:JSTOR 5438:JSTOR 5399:S2CID 5391:JSTOR 5344:(PDF) 5337:(PDF) 5236:datum 5182:Notes 5051:Kyoto 4907:Mecca 4855:1884 4623:Várad 4208:11°15 4121:4° 53 4100:4° 24 4054:4° 22 4005:2° 20 4001:Paris 3984:0° 00 3967:0° 00 3947:0° 00 3898:0° 00 3852:3° 41 3800:6° 17 3796:Cadiz 3754:9° 07 3704:16°38 3477:77°00 3453:77°02 3421:77°02 3369:77°03 3278:Pluto 3257:Titan 3191:Ceres 3166:Bruce 3151:Venus 3027:0°0′E 2958:0°0′E 2905:0°0′E 2857:0°0′E 2800:0°0′E 2782:(see 2746:0°0′E 2743:0°0′N 2698:0°0′E 2683:Ghana 2641:0°0′E 2598:0°0′E 2571:Ghana 2551:Ghana 2530:0°0′E 2471:0°0′E 2453:Ghana 2433:Ghana 2412:0°0′E 2353:0°0′E 2290:0°0′E 2228:0°0′E 2207:From 2162:0°0′E 2105:0°0′E 2090:Spain 2048:0°0′E 2027:From 2023:Spain 2003:Spain 1982:0°0′E 1967:Spain 1921:0°0′E 1900:From 1896:Spain 1876:Spain 1855:0°0′E 1834:From 1789:0°0′E 1732:0°0′E 1678:0°0′E 1653:From 1608:0°0′E 1558:0°0′E 1504:0°0′E 1450:0°0′E 1400:0°0′E 1350:0°0′E 1291:0°0′E 1241:0°0′E 1182:0°0′E 1132:0°0′E 1073:0°0′E 1019:0°0′E 886:WGS84 592:prime 513:Japan 446:Spain 213:Greek 82:in a 8488:170° 8483:160° 8478:140° 8473:130° 8468:110° 8463:100° 8428:170° 8423:160° 8418:140° 8413:130° 8408:110° 8403:100° 8368:175° 8363:165° 8358:155° 8353:145° 8348:135° 8343:125° 8338:115° 8333:105° 8278:175° 8273:165° 8268:155° 8263:145° 8258:135° 8253:125° 8248:115° 8243:105° 8187:180° 8181:150° 8176:120° 8153:180° 8147:150° 8142:120° 7855:Year 7840:Week 7830:Hour 7284:DUT1 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Index

IERS Reference Meridian
Prime meridian (Greenwich)
Line across the Earth
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IERS Reference Meridian
meridian
longitude
geographic coordinate system
180th meridian
360°-system
great circle
two hemispheres
Eastern Hemisphere
Western Hemisphere
international standard
IERS Reference Meridian
Greenwich Meridian

Gerardus Mercator
Atlas Cosmographicae
25°W
Santa Maria Island
Azores
Atlantic Ocean
Strait of Anián
tidally locked
equator
Moon
prograde
retrograde

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