Knowledge (XXG)

Gamma Columbae

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of 12,904 K. The estimated age of this star is around 24 million years. At this age, it is thought to be the remnant of a once more massive star that just finished
525: 1316: 1251: 375: 41: 1814: 1824: 1309: 653:, and is undergoing structural readjustment. This process is extremely short, on the order of ten thousand years, making it a rare object. 1794: 1132:
Irrgang, Andreas; Przybilla, Norbert; Meynet, Georges (2022). "γ Columbae as a recently stripped pulsating core of a massive star".
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Hubrig, S.; et al. (April 2009), "New magnetic field measurements of β Cephei stars and slowly pulsating B stars",
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Johnson, H. L.; Iriarte, B.; Mitchell, R. I.; Wisniewskj, W. Z. (1999), "UBVRIJKL photometry of the bright stars",
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Tetzlaff, N.; et al. (2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun",
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Hiltner, W. A.; et al. (July 1969), "MK Spectral Types for Bright Southern OB Stars",
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Gerbaldi, M.; et al. (November 2001), "Binary systems with post-T Tauri secondaries",
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Huélamo, N.; et al. (July 2000), "X-ray emission from Lindroos binary systems",
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from the primary, which corresponds to a projected physical separation of 8,844 
603: 566: 179: 137: 49: 1276: 963: 739: 1750: 1670: 1446: 1441: 1426: 1421: 1393: 672:. Despite the young age of these stars, there has been no X-ray emission detected. 634: 625: 463: 323: 282: 788: 731: 1479: 1474: 1469: 1431: 1416: 600: 562: 127: 116: 75: 1163: 1745: 1043: 1012:
Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation",
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Wilson, R. E. (1953), "General Catalogue of Stellar Radial Velocities",
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van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction",
540: 490: 400: 309: 242: 1146: 828: 1202: 1086: 1026: 938: 714: 1070:"Fundamental Parameters and Infrared Excesses of Hipparcos Stars" 1351: 998: 206: 194: 1298: 590: 1738: 1700: 1691: 1669: 1628: 1594: 1576: 1488: 1460: 1359: 1350: 660:with a classification of G8 V. It lies at an 1190:Monthly Notices of the Royal Astronomical Society 1074:Monthly Notices of the Royal Astronomical Society 695: 693: 691: 689: 687: 685: 1183: 1181: 1063: 1061: 979:Carnegie Institute Washington D.C. Publication 761: 759: 757: 755: 753: 751: 749: 1310: 1252:Centre de Données astronomiques de Strasbourg 883: 881: 879: 841: 839: 801: 799: 80:−35° 16′ 59.8153″ 8: 919: 917: 915: 913: 911: 656:The visual magnitude 12.664 companion is a 1697: 1666: 1625: 1356: 1317: 1303: 1295: 1127: 1125: 1123: 1219: 1201: 1145: 1103: 1085: 1025: 937: 890:Commission Lunar and Planetary Laboratory 859: 827: 787: 713: 573:. It is visible to the naked eye with an 681: 637:. It is radiating over 2,000 times the 186: 18: 7: 1275:Kaler, James B. (January 29, 2016), 629:. The star has nearly six times the 561:from γ Columbae, is a possible wide 33:       610:of B2.5 IV. It is a candidate 198: 1068:McDonald, I.; et al. (2012). 14: 585:, it is located roughly 870  16:Star in the constellation Columba 1766: 1765: 1221:10.1111/j.1365-2966.2010.17434.x 1105:10.1111/j.1365-2966.2012.21873.x 983:Carnegie Institution for Science 1815:Henry Draper Catalogue objects 577:of 4.36. Based upon an annual 1: 1825:Bright Star Catalogue objects 1342:Columba in Chinese astronomy 1248:SIMBAD Astronomical Database 633:and close to five times the 612:slowly pulsating B-type star 596:The primary component is an 221:3.75 ± 0.18  1841: 1795:G-type main-sequence stars 1244:"gam Col -- Variable Star" 1164:10.1038/s41550-022-01809-6 848:Astronomy and Astrophysics 789:10.1051/0004-6361:20011298 768:Astronomy and Astrophysics 732:10.1051/0004-6361:20078357 702:Astronomy and Astrophysics 1763: 1665: 1624: 1332: 1044:10.1134/S1063773712050015 926:Astronomische Nachrichten 658:G-type main sequence star 614:with a mean longitudinal 575:apparent visual magnitude 533: 503: 496: 456: 275: 270: 266: 156: 149: 110:B2.5 IV + G8 V 99: 24: 1337:List of stars in Columba 1326:Constellation of Columba 1283:, University of Illinois 1805:Columba (constellation) 870:2000A&A...359..227H 780:2001A&A...379..162G 724:2007A&A...474..653V 565:system in the southern 252:Absolute magnitude 87:Apparent magnitude 1810:Durchmusterung objects 956:10.1002/asna.200811187 608:stellar classification 808:Astrophysical Journal 647:effective temperature 1212:2011MNRAS.410..190T 1156:2022NatAs...6.1414I 1096:2012MNRAS.427..343M 1036:2012AstL...38..331A 991:1953GCRV..C......0W 948:2009AN....330..317H 902:1966CoLPL...4...99J 820:1969ApJ...157..313H 534:Database references 409:Rotational velocity 21: 662:angular separation 498:Other designations 201: +10.21  138:Variable type 106:Spectral type 19: 1820:Hipparcos objects 1777: 1776: 1759: 1758: 1687: 1686: 1661: 1660: 1620: 1619: 1140:(12): 1414–1420. 1014:Astronomy Letters 552: 551: 189: −3.24  1832: 1790:B-type subgiants 1769: 1768: 1698: 1667: 1626: 1357: 1319: 1312: 1305: 1296: 1291: 1289: 1288: 1277:"Gamma Columbae" 1262: 1261: 1259: 1258: 1240: 1234: 1233: 1223: 1205: 1185: 1176: 1175: 1149: 1134:Nature Astronomy 1129: 1118: 1117: 1107: 1089: 1065: 1056: 1055: 1029: 1009: 1003: 1002: 974: 968: 967: 941: 921: 906: 905: 885: 874: 873: 863: 861:astro-ph/0005348 843: 834: 833: 831: 803: 794: 793: 791: 763: 744: 743: 717: 697: 643:outer atmosphere 639:solar luminosity 628: 623: 448: 446: 429: 427: 398: 396: 393: 373: 371: 321: 319: 294: 292: 200: 188: 100:Characteristics 95: 90: 70: 65: 25:Observation data 22: 1840: 1839: 1835: 1834: 1833: 1831: 1830: 1829: 1780: 1779: 1778: 1773: 1755: 1734: 1683: 1657: 1616: 1590: 1572: 1484: 1456: 1346: 1328: 1323: 1286: 1284: 1274: 1271: 1266: 1265: 1256: 1254: 1242: 1241: 1237: 1187: 1186: 1179: 1131: 1130: 1121: 1067: 1066: 1059: 1011: 1010: 1006: 976: 975: 971: 923: 922: 909: 887: 886: 877: 845: 844: 837: 805: 804: 797: 765: 764: 747: 699: 698: 683: 678: 651:hydrogen fusion 631:mass of the Sun 621: 619: 529: 476: 473: 444: 442: 425: 423: 415: sin  394: 391: 389: 369: 367: 357:Surface gravity 349: 346: 329: 326: 317: 315: 302: 299: 290: 288: 257: 241:(270 ± 10  240: 197: 173:+24.2 km/s 168: 163:Radial velocity 93: 85: 68: 63:Right ascension 61: 26: 17: 12: 11: 5: 1838: 1836: 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616:magnetic field 579:parallax shift 555:Gamma Columbae 550: 549: 544: 536: 535: 531: 530: 528: 196352. 504: 501: 500: 494: 493: 487: 479: 478: 474: 471: 467: 459: 458: 454: 453: 440: 432: 431: 421: 404: 403: 387: 379: 378: 365: 352: 351: 347: 344: 340: 332: 331: 327: 324: 313: 305: 304: 300: 297: 286: 278: 277: 273: 272: 268: 267: 264: 263: 260: 255: 247: 246: 236:870 ± 40  234: 226: 225: 219: 210: 209: 184: 175: 174: 171: 166: 158: 157: 154: 153: 147: 146: 140: 134: 133: 130: 123: 122: 119: 112: 111: 108: 102: 101: 97: 96: 94:4.366 + 12.664 91: 82: 81: 78: 72: 71: 69:05 57 32.20958 66: 58: 57: 52: 46: 45: 15: 13: 10: 9: 6: 4: 3: 2: 1837: 1826: 1823: 1821: 1818: 1816: 1813: 1811: 1808: 1806: 1803: 1801: 1800:Bayer objects 1798: 1796: 1793: 1791: 1788: 1787: 1785: 1772: 1762: 1752: 1749: 1747: 1744: 1743: 1741: 1737: 1731: 1728: 1726: 1723: 1721: 1718: 1716: 1713: 1711: 1708: 1707: 1705: 1703: 1699: 1696: 1694: 1690: 1680: 1677: 1676: 1674: 1672: 1671:Star clusters 1668: 1664: 1654: 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1111: 1106: 1101: 1097: 1093: 1088: 1083: 1080:(1): 343–57. 1079: 1075: 1071: 1064: 1062: 1058: 1053: 1049: 1045: 1041: 1037: 1033: 1028: 1023: 1019: 1015: 1008: 1005: 1000: 996: 992: 988: 984: 980: 973: 970: 965: 961: 957: 953: 949: 945: 940: 935: 931: 927: 920: 918: 916: 914: 912: 908: 903: 899: 895: 891: 884: 882: 880: 876: 871: 867: 862: 857: 853: 849: 842: 840: 836: 830: 825: 821: 817: 813: 809: 802: 800: 796: 790: 785: 781: 777: 773: 769: 762: 760: 758: 756: 754: 752: 750: 746: 741: 737: 733: 729: 725: 721: 716: 711: 707: 703: 696: 694: 692: 690: 688: 686: 682: 675: 673: 671: 667: 664:of 33.8  663: 659: 654: 652: 648: 644: 640: 636: 632: 627: 617: 613: 609: 605: 604:subgiant star 602: 599: 594: 592: 588: 584: 581:of 3.75  580: 576: 572: 568: 567:constellation 564: 560: 556: 548: 545: 543: 542: 538: 537: 532: 527: 523: 520: 28199, 519: 516: 40494, 515: 511: 507: 502: 499: 495: 492: 488: 486: 485: 481: 480: 477: 468: 466: 465: 461: 460: 455: 452: 441: 439: 438: 434: 433: 422: 420: 418: 414: 410: 406: 405: 402: 388: 386: 385: 381: 380: 377: 366: 364: 362: 358: 354: 353: 350: 341: 339: 338: 334: 333: 330: 314: 312: 311: 307: 306: 303: 287: 285: 284: 280: 279: 274: 269: 265: 261: 259: 253: 249: 248: 244: 239: 235: 233: 232: 228: 227: 224: 220: 218: 216: 212: 211: 208: 204: 196: 192: 185: 183: 181: 180:Proper motion 177: 176: 172: 170: 164: 160: 159: 155: 152: 148: 145: 141: 139: 136: 135: 131: 129: 125: 124: 120: 118: 114: 113: 109: 107: 104: 103: 98: 92: 88: 84: 83: 79: 77: 74: 73: 67: 64: 60: 59: 56: 53: 51: 50:Constellation 48: 47: 43: 39: 36: 32: 29: 23: 1751:PKS 0521-365 1410: 1378: 1285:, retrieved 1280: 1255:, retrieved 1247: 1238: 1193: 1189: 1137: 1133: 1077: 1073: 1017: 1013: 1007: 978: 972: 929: 925: 893: 889: 851: 847: 811: 807: 771: 767: 705: 701: 655: 618:strength of 595: 554: 553: 539: 524: 2106, 482: 462: 435: 416: 412: 407: 382: 360: 355: 335: 308: 281: 250: 229: 213: 178: 161: 1399:θ (Elkurud) 854:: 227–241, 814:: 313–326, 774:: 162–184, 666:arc seconds 635:Sun's girth 587:light years 563:binary star 489:5,367  484:Temperature 384:Temperature 342:2,070  128:color index 117:color index 76:Declination 20:γ Columbae 1784:Categories 1746:ESO 306-17 1630:Exoplanets 1287:2016-12-21 1257:2016-12-19 1147:2211.00358 1020:(5): 331, 932:(4): 317, 676:References 512:−35°2612, 469:0.94  430: km/s 359:(log  337:Luminosity 151:Astrometry 142:Candidate 1369:α (Phact) 1230:118629873 1203:1007.4883 1172:253244604 1114:118665352 1087:1208.2037 1052:119257644 1027:1108.4971 939:0902.1314 715:0708.1752 641:from its 589:from the 559:Latinized 89: (V) 1771:Category 1693:Galaxies 1679:NGC 1851 1653:WASP-63b 1643:NGTS-3Ab 1462:Variable 1374:β (Wazn) 999:54001336 964:17497112 740:18759600 624:28  475:☉ 348:☉ 328:☉ 301:☉ 254: (M 231:Distance 215:Parallax 1648:NGTS-4b 1638:NGTS-1b 1612:WASP-63 1208:Bibcode 1152:Bibcode 1092:Bibcode 1032:Bibcode 987:Bibcode 944:Bibcode 898:Bibcode 866:Bibcode 816:Bibcode 776:Bibcode 720:Bibcode 606:with a 598:evolved 571:Columba 457:γ Col B 276:γ Col A 271:Details 55:Columba 38:J2000.0 35:Equinox 31:J2000.0 1607:NGTS-3 1602:NGTS-1 1411:(Tsze) 1228:  1170:  1112:  1050:  997:  962:  896:: 99, 738:  645:at an 601:B-type 541:SIMBAD 449:  399:  374:  322:  310:Radius 295:  132:−0.18 121:−0.66 1739:Other 1595:Other 1586:43848 1361:Bayer 1352:Stars 1281:STARS 1226:S2CID 1198:arXiv 1168:S2CID 1142:arXiv 1110:S2CID 1082:arXiv 1048:S2CID 1022:arXiv 960:S2CID 934:arXiv 856:arXiv 736:S2CID 710:arXiv 506:γ Col 372:0.100 368:3.328 262:−2.76 199:Dec.: 28:Epoch 1730:2090 1725:1992 1720:1989 1715:1808 1710:1792 1568:2446 1563:2445 1558:2411 1553:2399 1548:2288 1543:2263 1538:2149 1533:2131 1528:2082 1523:2069 1518:1958 1513:1877 1508:1835 1503:1758 1498:1721 995:LCCN 547:data 464:Mass 443:23.6 283:Mass 126:B−V 115:U−B 42:ICRS 1702:NGC 1216:doi 1194:410 1160:doi 1100:doi 1078:427 1040:doi 952:doi 930:330 852:359 824:doi 812:157 784:doi 772:379 728:doi 706:474 591:Sun 583:mas 569:of 526:SAO 518:HIP 451:Myr 447:2.0 437:Age 397:320 392:570 376:cgs 320:0.4 316:4.8 293:0.3 289:5.7 223:mas 217:(π) 203:mas 191:mas 187:RA: 182:(μ) 144:SPB 1786:: 1578:HD 1490:HR 1480:AP 1475:AF 1470:WZ 1409:λ 1279:, 1250:, 1246:, 1224:, 1214:, 1206:, 1192:, 1180:^ 1166:. 1158:. 1150:. 1136:. 1122:^ 1108:. 1098:. 1090:. 1076:. 1072:. 1060:^ 1046:, 1038:, 1030:, 1018:38 1016:, 993:, 985:, 981:, 958:, 950:, 942:, 928:, 910:^ 892:, 878:^ 864:, 850:, 838:^ 822:, 810:, 798:^ 782:, 770:, 748:^ 734:, 726:, 718:, 704:, 684:^ 670:AU 620:94 593:. 557:, 522:HR 514:HD 510:CD 508:, 428:16 424:96 390:15 243:pc 238:ly 207:yr 195:yr 165:(R 44:) 1452:σ 1447:π 1442:π 1437:ο 1432:ξ 1427:ν 1422:ν 1417:μ 1404:κ 1394:η 1389:ε 1384:δ 1379:γ 1318:e 1311:t 1304:v 1290:. 1260:. 1232:. 1218:: 1210:: 1200:: 1174:. 1162:: 1154:: 1144:: 1138:6 1116:. 1102:: 1094:: 1084:: 1054:. 1042:: 1034:: 1024:: 1001:. 989:: 966:. 954:: 946:: 936:: 904:. 900:: 894:4 872:. 868:: 858:: 832:. 826:: 818:: 792:. 786:: 778:: 742:. 730:: 722:: 712:: 626:G 622:± 491:K 472:M 445:± 426:± 419:) 417:i 413:v 411:( 401:K 395:± 370:± 363:) 361:g 345:L 325:R 318:± 298:M 291:± 258:) 256:V 245:) 205:/ 193:/ 169:) 167:v 40:(

Index

Epoch
J2000.0
Equinox
J2000.0
ICRS
Constellation
Columba
Right ascension
Declination
Apparent magnitude
Spectral type
color index
color index
Variable type
SPB
Astrometry
Radial velocity
Proper motion
mas
yr
mas
yr
Parallax
mas
Distance
ly
pc
Absolute magnitude
Mass
M

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