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Variable-star designation

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170:. With the advent of photography the number of variables piled up quickly, and variable star names soon fell into the Bayer trap of reaching the end of the alphabet while still having stars to name. After two subsequent supplementary double-lettering systems hit similar limits, numbers were finally introduced. 185:
in Moscow, Russia. Sternberg publishes the General Catalog of Variable Stars (GCVS), which is periodically (approximately once every two years) amended by the publication of a new "Name-List" of variable stars. For example, in December 2011 the 80th Name-List of Variable Stars, Part II, was released,
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had used uppercase R to Z letters in a few cases, for example X Puppis (HR 2548), these designations were either dropped or accepted as variable star designations. The star T Puppis was accepted by Argelander as a variable star and is included in the
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containing designations for 2,161 recently discovered variable stars; these brought the total number of variable stars in the GCVS to 45,678. Among the newly designated objects were V0654 Aurigae, V1367 Centauri, and BU Coronae Borealis.
182: 129:, the letter R was chosen as a starting point so as to avoid confusion with letter spectral types or the (now rarely used) Latin-letter Bayer designations. Although 271:
Lost Stars: Lost, Missing, and Troublesome Stars from the Catalogues of Johannes Bayer, Nicholas-Louis de Lacaille, John Flamsteed, and Sundry Others
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Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)".
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Kazarovets, E. V.; Samus, N. N. (2013). "Novae in the 80th Name-list of Variable Stars (Part 3): Official Announcement of GCVS Names".
163:, both meaning "red", because many variable stars known at that time appear red. However, Argelander's own statement disproves this. 17: 287: 251: 231: 135: 178: 174: 142: 125:. Because very few constellations contained stars with uppercase Latin-letter Bayer designation greater than 105:
Abandon the Latin script after 334 combinations of letters and start naming stars with V335, V336, and so on.
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Use AA...AZ, BB...BZ, CC...CZ and so on until reaching QZ, omitting J in both the first and second positions.
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for a list of constellations and the genitive forms of their names. The identifying label can be one or two
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In the early 19th century few variable stars were known, so it seemed reasonable to use the letters of the
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Chapman, David M. F. (1999). "Reflections: F.W.A. Argelander - Star Charts and Variable Stars".
58: 221: 450: 419: 349: 275: 8: 454: 423: 353: 279: 297: 70: 283: 227: 43: 149:. There is a widespread belief according to which Argelander chose the letter R for 200: 93:
Stars with existing Greek letter Bayer designations are not given new designations.
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VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S
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As with all categories of astronomical objects, names are assigned by the
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format, with an identifying label (as described below) preceding the
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By 1836, even the letter S had only been used in one constellation,
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Continue with RR...RZ, then use SS...SZ, TT...TZ and so on until ZZ.
110: 274:. McDonald & Woodward Publishing Company. pp. viii+540. 247: 167: 74: 113:
than the first, e.g., no star can be BA, CA, CB, DA and so on.
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with that designation but is now classed as non-variable.
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Institute of Astronomy of the Russian Academy of Sciences
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The second letter is never nearer the beginning of the
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Otherwise, start with the letter R and go through Z.
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Journal of the Royal Astronomical Society of Canada
481: 409: 440: 267: 219: 463:"The names and catalogues of variable stars" 371:"The names and catalogues of variable stars" 258:"I" and "J" can be difficult to distinguish. 226:. Cambridge University Press. pp. 46–. 329:. Hipp. Lud.Guerin & Lud. Fr. Delatour. 467:Les étoiles variables - The variable stars 177:(IAU). The IAU delegates the task to the 69:plus a number (e.g. V399). Examples are 27:Unique identifier given to variable stars 383: 500:Objects with variable star designations 403: 339: 14: 482: 333: 365: 363: 316: 261: 246:Most of this system was invented in 223:David Levy's Guide to Variable Stars 323:Nicolas-Louis de La Caille (1763). 213: 136:General Catalogue of Variable Stars 24: 434: 360: 220:David H. Levy (15 December 2005). 25: 511: 179:Sternberg Astronomical Institute 175:International Astronomical Union 38:is a unique identifier given to 240: 89:The current naming system is: 42:. It uses a variation on the 13: 1: 206: 57:in which the star lies. See 7: 326:Coelum australe stelliferum 189: 10: 516: 254:at the time, in which the 116: 84: 36:variable-star designation 18:Variable star designation 147:Friedrich W. Argelander 268:Morton Wagman (2003). 59:List of constellations 391:"GCVS RESEARCH GROUP" 250:, which was still on 455:2009yCat....102025S 424:2013PZ.....33....3K 354:1999JRASC..93...17C 280:2003lslm.book.....W 141:This variable star 53:of the name of the 71:R Coronae Borealis 495:Stellar astronomy 412:Peremennye Zvezdy 289:978-0-939923-78-6 233:978-0-521-60860-2 145:was developed by 143:naming convention 44:Bayer designation 16:(Redirected from 507: 476: 474: 473: 458: 428: 427: 407: 401: 400: 398: 397: 387: 381: 380: 378: 377: 367: 358: 357: 337: 331: 330: 320: 314: 313: 307: 303: 301: 293: 265: 259: 244: 238: 237: 217: 201:Star designation 21: 515: 514: 510: 509: 508: 506: 505: 504: 480: 479: 471: 469: 461: 437: 435:Further reading 432: 431: 408: 404: 395: 393: 389: 388: 384: 375: 373: 369: 368: 361: 338: 334: 321: 317: 305: 304: 295: 294: 290: 266: 262: 245: 241: 234: 218: 214: 209: 192: 119: 87: 28: 23: 22: 15: 12: 11: 5: 513: 503: 502: 497: 492: 490:Variable stars 478: 477: 459: 436: 433: 430: 429: 402: 382: 359: 332: 315: 306:|journal= 288: 260: 239: 232: 211: 210: 208: 205: 204: 203: 198: 196:Star catalogue 191: 188: 118: 115: 107: 106: 103: 100: 97: 94: 86: 83: 40:variable stars 26: 9: 6: 4: 3: 2: 512: 501: 498: 496: 493: 491: 488: 487: 485: 468: 464: 460: 456: 452: 448: 444: 439: 438: 425: 421: 417: 413: 406: 392: 386: 372: 366: 364: 355: 351: 347: 343: 336: 328: 327: 319: 311: 299: 291: 285: 281: 277: 273: 272: 264: 257: 253: 249: 243: 235: 229: 225: 224: 216: 212: 202: 199: 197: 194: 193: 187: 184: 180: 176: 171: 169: 164: 162: 159: 155: 152: 148: 144: 139: 137: 132: 128: 124: 114: 112: 104: 101: 98: 95: 92: 91: 90: 82: 80: 76: 72: 68: 65:letters or a 64: 60: 56: 55:constellation 52: 49: 45: 41: 37: 33: 19: 470:. Retrieved 466: 446: 442: 415: 411: 405: 394:. Retrieved 385: 374:. Retrieved 345: 341: 335: 325: 318: 270: 263: 242: 222: 215: 172: 165: 160: 153: 140: 123:Latin script 120: 108: 88: 79:V603 Aquilae 66: 35: 29: 484:Categories 472:2005-11-06 449:: B/gcvs. 396:2018-11-16 376:2018-11-16 256:majuscules 207:References 308:ignored ( 298:cite book 32:astronomy 418:(3): 3. 190:See also 181:and the 131:Lacaille 111:alphabet 51:genitive 451:Bibcode 420:Bibcode 350:Bibcode 276:Bibcode 252:Fraktur 248:Germany 168:Serpens 117:History 75:YZ Ceti 348:: 17. 286:  230:  158:French 151:German 85:Naming 161:rouge 63:Latin 48:Latin 310:help 284:ISBN 228:ISBN 34:, a 156:or 154:rot 30:In 486:: 465:. 445:. 416:33 414:. 362:^ 346:93 344:. 302:: 300:}} 296:{{ 282:. 81:. 77:, 73:, 475:. 457:. 453:: 447:1 426:. 422:: 399:. 379:. 356:. 352:: 312:) 292:. 278:: 236:. 127:Q 67:V 20:)

Index

Variable star designation
astronomy
variable stars
Bayer designation
Latin
genitive
constellation
List of constellations
Latin
R Coronae Borealis
YZ Ceti
V603 Aquilae
alphabet
Latin script
Q
Lacaille
General Catalogue of Variable Stars
naming convention
Friedrich W. Argelander
German
French
Serpens
International Astronomical Union
Sternberg Astronomical Institute
Institute of Astronomy of the Russian Academy of Sciences
Star catalogue
Star designation
David Levy's Guide to Variable Stars
ISBN
978-0-521-60860-2

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