Knowledge (XXG)

Alpha Equulei

Source 📝

32: 1592: 39: 580: 1192: 1062:
Pizzolato, N.; Maggio, A.; Sciortino, S. (September 2000), "Evolution of X-ray activity of 1-3 Msun late-type stars in early post-main-sequence phases",
1211:"Spectral classifications in the near infrared of stars with composite spectra. III. Study of a sample of 137 objects with the Aurelie spectrograph" 1659: 1654: 860:
The two stars revolve in a circular orbit every 98.8 days. Their respective orbital velocities allow their masses to be calculated at 2.3 
1174: 1097: 1629: 850:
about 26 times as luminous as the sun. It has an effective temperature of 8,150 K and a radius 2.6 times greater than the sun. It is a
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Cousins, A. W. J. (1984). "Standardization of Broadband Photometry of Equatorial Standards".
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for this star on 21 August 2016 and it is now so entered in the IAU Catalog of Star Names.
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A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations
1038: 978: 744:(WGSN) to catalogue and standardize proper names for stars. The WGSN approved the name 551: 317: 291: 234: 214: 198: 1608: 1335: 1330: 1047: 1022: 847: 683: 675: 183: 68: 943: 1325: 1023:"Composite spectra Paper 11: α Equulei, an astrometric binary with an Am secondary" 837: 776: 491: 464: 390: 363: 935: 844: 808: 144: 133: 94: 1534: 1406: 811: 687: 471: 403: 370: 249: 154: 1526: 1487: 1482: 1477: 1472: 1467: 1449: 1444: 1439: 1434: 1429: 1424: 1401: 1396: 1378: 1373: 1368: 1350: 1345: 1246: 1235: 1210: 1575: 1570: 1565: 1503: 679: 544: 38: 1508: 854: 1548: 832: 729: 603: 529: 484: 430: 383: 254: 918: 283: 1303: 671: 537: 218: 202: 1250: 584: 1199:, Hong Kong Space Museum. Accessed on line November 23, 2010. 662: 653: 644: 1092:(2nd rev. ed.). Cambridge, Massachusetts: Sky Pub. 825:
The primary star is a G7 giant about fifty times more
1209:
Ginestet, N.; Carquillat, J. M.; Jaschek, C. (1999).
659: 641: 656: 650: 1556: 1547: 1525: 1496: 1458: 1415: 1387: 1359: 1311: 1302: 647: 1169:, written by 陳久金. Published by 台灣書房出版有限公司, 2005, 1027:Monthly Notices of the Royal Astronomical Society 895: 893: 891: 889: 887: 967:South African Astronomical Observatory Circulars 1262: 790: 784: 762: 756: 99:+05° 14′ 52.2430″ 8: 902:"Validation of the new Hipparcos reduction" 59:J2000.0       1553: 1522: 1308: 1269: 1255: 1247: 1021:Griffin, R. E. M.; Griffin, R. F. (2002). 1016: 1014: 1012: 1010: 1008: 1234: 1111: 1109: 1046: 1006: 1004: 1002: 1000: 998: 996: 994: 992: 990: 988: 960: 958: 956: 917: 807:The overall appearance of α Equulei is a 883: 190: 1139:IAU Working Group on Star Names (WGSN) 736:—"a piece of the horse". In 2016, the 18: 1215:Astronomy and Astrophysics Supplement 829:. It has an effective temperature of 7: 1088:Kunitzsch, Paul; Smart, Tim (2006). 822:consisting of two individual stars. 840:of 9.2 times greater than the Sun. 206: 16:Star in the constellation Equuleus 14: 1591: 1590: 1144:International Astronomical Union 1048:10.1046/j.1365-8711.2002.05030.x 775:consisting of Alpha Equulei and 738:International Astronomical Union 637: 37: 30: 48:Location of α Equulei (circled) 1660:Henry Draper Catalogue objects 1: 1655:Bright Star Catalogue objects 1289:Equuleus in Chinese astronomy 716:It bore the traditional name 177:−15.71 ± 0.05 km/s 797:the Second Star of Emptiness 783:for Alpha Equulei itself is 233:17.14 ± 0.21  1117:"IAU Catalog of Star Names" 791: 763: 742:Working Group on Star Names 1681: 1630:A-type main-sequence stars 1064:Astronomy and Astrophysics 936:10.1051/0004-6361:20078357 906:Astronomy and Astrophysics 1588: 1521: 1294:List of stars in Equuleus 1284: 1278:Constellation of Equuleus 796: 785: 757: 596: 557: 550: 457: 356: 351: 282: 278: 160: 153: 116: 53: 24: 900:van Leeuwen, F. (2007). 1640:Stars with proper names 1227:1999A&AS..134..473G 1076:2000A&A...361..614P 928:2007A&A...474..653V 728:, a contraction of the 264:Absolute magnitude 106:Apparent magnitude 1665:Durchmusterung objects 1635:Spectroscopic binaries 1190:香港太空館 - 研究資源 - 亮星中英對照表 818:of +3.92, but it is a 949:Vizier catalog entry 827:luminous than the Sun 575: +04 4635, 843:The secondary is an 820:spectroscopic binary 779:. Consequently, the 632:), officially named 1236:10.1051/aas:1999444 1039:2002MNRAS.330..288G 979:1984SAAOC...8...59C 852:chemically peculiar 597:Database references 439:Rotational velocity 274:+0.17 (0.71 + 1.18) 21: 1195:2011-01-29 at the 816:apparent magnitude 792:Xū Sù èr 552:Other designations 127:G7III + kA3hA4mA9 123:Spectral type 112:+3.919(4.49/4.96) 19: 1650:Flamsteed objects 1645:Hipparcos objects 1602: 1601: 1584: 1583: 1543: 1542: 1517: 1516: 1175:978-986-7332-25-7 1099:978-1-931559-44-7 734:qiṭ‘a(t) al-faras 711:Bayer designation 615: 614: 330:16.34 ± 0.07 km/s 253:(58.3 ± 0.7  1672: 1594: 1593: 1554: 1523: 1309: 1271: 1264: 1257: 1248: 1241: 1240: 1238: 1206: 1200: 1188: 1184: 1178: 1165: 1161: 1155: 1154: 1152: 1150: 1134: 1128: 1127: 1125: 1123: 1113: 1104: 1103: 1085: 1079: 1078: 1059: 1053: 1052: 1050: 1018: 983: 982: 962: 951: 947: 921: 897: 874:, respectively. 835: 798: 794: 788: 787: 766: 760: 759: 732:name قطعة الفرس 709:) is the star's 669: 668: 665: 664: 661: 658: 655: 652: 649: 646: 643: 212: 208: 196: 192: 117:Characteristics 109: 89: 84: 54:Observation data 41: 34: 22: 1680: 1679: 1675: 1674: 1673: 1671: 1670: 1669: 1605: 1604: 1603: 1598: 1580: 1539: 1513: 1492: 1454: 1411: 1383: 1355: 1298: 1280: 1275: 1245: 1244: 1208: 1207: 1203: 1197:Wayback Machine 1186: 1185: 1181: 1163: 1162: 1158: 1148: 1146: 1136: 1135: 1131: 1121: 1119: 1115: 1114: 1107: 1100: 1087: 1086: 1082: 1061: 1060: 1056: 1020: 1019: 986: 964: 963: 954: 899: 898: 885: 880: 873: 870: 866: 863: 830: 805: 696: 682:. It is a high 640: 636: 592: 563: Equulei, 515: 512: 497: 494: 477: 474: 445: sin  416: 413: 396: 393: 376: 373: 347:17.9 ± 0.3 km/s 343: 341: 326: 324: 269: 252: 210: 205: 194: 172: 167:Radial velocity 104: 87: 82:Right ascension 80: 55: 49: 47: 46: 45: 44: 43: 42: 17: 12: 11: 5: 1678: 1676: 1668: 1667: 1662: 1657: 1652: 1647: 1642: 1637: 1632: 1627: 1622: 1617: 1607: 1606: 1600: 1599: 1589: 1586: 1585: 1582: 1581: 1579: 1578: 1573: 1568: 1562: 1560: 1551: 1545: 1544: 1541: 1540: 1538: 1537: 1531: 1529: 1519: 1518: 1515: 1514: 1512: 1511: 1506: 1500: 1498: 1494: 1493: 1491: 1490: 1485: 1480: 1475: 1470: 1464: 1462: 1456: 1455: 1453: 1452: 1447: 1442: 1437: 1432: 1427: 1421: 1419: 1413: 1412: 1410: 1409: 1404: 1399: 1393: 1391: 1385: 1384: 1382: 1381: 1376: 1371: 1365: 1363: 1357: 1356: 1354: 1353: 1348: 1343: 1338: 1333: 1328: 1323: 1317: 1315: 1306: 1300: 1299: 1297: 1296: 1291: 1285: 1282: 1281: 1276: 1274: 1273: 1266: 1259: 1251: 1243: 1242: 1201: 1179: 1156: 1129: 1105: 1098: 1080: 1054: 984: 952: 912:(2): 653–664. 882: 881: 879: 876: 871: 868: 864: 861: 804: 801: 695: 692: 686:star only 190 624:, abbreviated 613: 612: 607: 599: 598: 594: 593: 583: 126662, 579: 104987, 571: 202447, 558: 555: 554: 548: 547: 541: 533: 532: 526: 518: 517: 513: 510: 506: 500: 499: 495: 492: 488: 480: 479: 475: 472: 468: 460: 459: 455: 454: 453:20.0 km/s 451: 434: 433: 427: 419: 418: 414: 411: 407: 399: 398: 394: 391: 387: 379: 378: 374: 371: 367: 359: 358: 354: 353: 349: 348: 345: 339: 336:Semi-amplitude 332: 331: 328: 322: 318:Semi-amplitude 313: 312: 309: 300: 299: 296: 287: 286: 280: 279: 276: 275: 272: 267: 259: 258: 246: 238: 237: 231: 222: 221: 188: 179: 178: 175: 170: 162: 161: 158: 157: 151: 150: 147: 140: 139: 136: 129: 128: 125: 119: 118: 114: 113: 110: 101: 100: 97: 91: 90: 88:21 15 49.43192 85: 77: 76: 71: 65: 64: 51: 50: 36: 35: 29: 28: 27: 26: 25: 15: 13: 10: 9: 6: 4: 3: 2: 1677: 1666: 1663: 1661: 1658: 1656: 1653: 1651: 1648: 1646: 1643: 1641: 1638: 1636: 1633: 1631: 1628: 1626: 1625:G-type giants 1623: 1621: 1618: 1616: 1615:Bayer objects 1613: 1612: 1610: 1597: 1587: 1577: 1574: 1572: 1569: 1567: 1564: 1563: 1561: 1559: 1555: 1552: 1550: 1546: 1536: 1533: 1532: 1530: 1528: 1524: 1520: 1510: 1507: 1505: 1502: 1501: 1499: 1495: 1489: 1486: 1484: 1481: 1479: 1476: 1474: 1471: 1469: 1466: 1465: 1463: 1461: 1457: 1451: 1448: 1446: 1443: 1441: 1438: 1436: 1433: 1431: 1428: 1426: 1423: 1422: 1420: 1418: 1414: 1408: 1405: 1403: 1400: 1398: 1395: 1394: 1392: 1390: 1386: 1380: 1377: 1375: 1372: 1370: 1367: 1366: 1364: 1362: 1358: 1352: 1349: 1347: 1344: 1342: 1339: 1337: 1334: 1332: 1329: 1327: 1324: 1322: 1319: 1318: 1316: 1314: 1310: 1307: 1305: 1301: 1295: 1292: 1290: 1287: 1286: 1283: 1279: 1272: 1267: 1265: 1260: 1258: 1253: 1252: 1249: 1237: 1232: 1228: 1224: 1220: 1216: 1212: 1205: 1202: 1198: 1194: 1191: 1183: 1180: 1176: 1172: 1168: 1160: 1157: 1145: 1141: 1140: 1133: 1130: 1118: 1112: 1110: 1106: 1101: 1095: 1091: 1084: 1081: 1077: 1073: 1069: 1065: 1058: 1055: 1049: 1044: 1040: 1036: 1032: 1028: 1024: 1017: 1015: 1013: 1011: 1009: 1007: 1005: 1003: 1001: 999: 997: 995: 993: 991: 989: 985: 980: 976: 972: 968: 961: 959: 957: 953: 950: 945: 941: 937: 933: 929: 925: 920: 915: 911: 907: 903: 896: 894: 892: 890: 888: 884: 877: 875: 867:and 2.0  858: 856: 853: 849: 846: 841: 839: 834: 828: 823: 821: 817: 813: 810: 802: 800: 793: 782: 778: 774: 770: 765: 754: 749: 747: 743: 739: 735: 731: 727: 723: 719: 714: 712: 708: 707:Alpha Equulei 704: 700: 693: 691: 689: 685: 684:proper-motion 681: 677: 676:constellation 673: 667: 635: 631: 627: 623: 619: 618:Alpha Equulei 611: 608: 606: 605: 601: 600: 595: 590: 586: 582: 578: 574: 570: 566: 562: 556: 553: 549: 546: 542: 540: 539: 535: 534: 531: 527: 525: 524: 520: 519: 516: 507: 505: 502: 501: 498: 489: 487: 486: 482: 481: 478: 469: 467: 466: 462: 461: 456: 452: 450: 448: 444: 440: 436: 435: 432: 428: 426: 425: 421: 420: 417: 408: 406: 405: 401: 400: 397: 388: 386: 385: 381: 380: 377: 368: 366: 365: 361: 360: 355: 350: 346: 337: 334: 333: 329: 320: 319: 315: 314: 310: 308: 306: 302: 301: 297: 295: 293: 289: 288: 285: 281: 277: 273: 271: 265: 261: 260: 256: 251: 248:190 ± 2  247: 245: 244: 240: 239: 236: 232: 230: 228: 224: 223: 220: 216: 211:−94.09 ± 0.18 204: 200: 195:+59.88 ± 0.23 189: 187: 185: 184:Proper motion 181: 180: 176: 174: 168: 164: 163: 159: 156: 152: 148: 146: 142: 141: 137: 135: 131: 130: 126: 124: 121: 120: 115: 111: 107: 103: 102: 98: 96: 93: 92: 86: 83: 79: 78: 75: 72: 70: 69:Constellation 67: 66: 62: 58: 52: 40: 33: 23: 1321:α (Kitalpha) 1320: 1218: 1214: 1204: 1187:(in Chinese) 1182: 1166: 1164:(in Chinese) 1159: 1147:, retrieved 1138: 1132: 1120:. Retrieved 1089: 1083: 1067: 1063: 1057: 1030: 1026: 970: 966: 909: 905: 859: 842: 824: 806: 781:Chinese name 777:Beta Aquarii 750: 745: 740:organized a 733: 725: 721: 717: 715: 706: 698: 697: 694:Nomenclature 633: 629: 625: 621: 617: 616: 602: 591: 29735 567: 8131, 536: 521: 503: 483: 463: 446: 442: 437: 422: 402: 382: 362: 335: 316: 305:Eccentricity 303: 298:98.8098 days 290: 262: 241: 225: 182: 165: 1070:: 614–628, 831:5,100  795:, English: 767:), meaning 722:Kitel Phard 688:light-years 587: 800, 559:Kitalphar, 528:8.150  523:Temperature 429:5,100  424:Temperature 344:(secondary) 145:color index 134:color index 95:Declination 1609:Categories 1535:MASCARA-1b 1527:Exoplanets 1221:(3): 473. 1033:(2): 288. 878:References 803:Properties 726:Kitalphar) 508:26.3  504:Luminosity 409:52.5  404:Luminosity 155:Astrometry 20:α Equulei 1361:Flamsteed 919:0708.1752 769:Emptiness 703:Latinised 699:α Equulei 626:Alpha Equ 622:α Equulei 543:740  490:2.6  470:2.0  389:9.2  369:2.3  327:(primary) 108: (V) 1620:Equuleus 1596:Category 1549:Galaxies 1504:HAT-P-65 1389:Variable 1193:Archived 944:18759600 872:☉ 865:☉ 814:with an 773:asterism 771:, is an 746:Kitalpha 720:(rarely 718:Kitalpha 680:Equuleus 634:Kitalpha 514:☉ 496:☉ 476:☉ 415:☉ 395:☉ 375:☉ 266: (M 243:Distance 227:Parallax 74:Equuleus 63:J2000.0 1509:WASP-90 1223:Bibcode 1122:28 July 1072:Bibcode 1035:Bibcode 975:Bibcode 924:Bibcode 855:Am star 753:Chinese 674:in the 670:, is a 352:Details 149:+0.529 138:+0.284 61:Equinox 1488:203473 1483:202908 1478:201585 1473:200964 1468:200779 1173:  1167:中國星座神話 1149:22 May 1096:  973:: 59. 942:  845:A-type 838:radius 836:and a 809:G-type 730:Arabic 690:away. 604:SIMBAD 485:Radius 384:Radius 292:Period 213:  209:  197:  193:  1497:Other 1313:Bayer 1304:Stars 940:S2CID 914:arXiv 848:dwarf 812:giant 764:Xū Sù 630:α Equ 284:Orbit 207:Dec.: 57:Epoch 1576:7046 1571:7040 1566:7015 1450:8191 1445:8149 1440:8095 1435:8090 1430:8067 1425:8038 1171:ISBN 1151:2016 1124:2016 1094:ISBN 672:star 610:data 465:Mass 364:Mass 143:B−V 132:U−B 1558:NGC 1231:doi 1219:134 1068:361 1043:doi 1031:330 932:doi 910:474 799:). 786:虛宿二 751:In 724:or 705:to 678:of 585:FK5 581:SAO 577:HIP 545:Myr 538:Age 307:(e) 294:(P) 235:mas 229:(π) 215:mas 199:mas 191:RA: 186:(μ) 1611:: 1460:HD 1417:HR 1407:SY 1229:. 1217:. 1213:. 1142:, 1108:^ 1066:, 1041:. 1029:. 1025:. 987:^ 969:. 955:^ 938:. 930:. 922:. 908:. 904:. 886:^ 857:. 758:虚宿 755:, 713:. 628:, 589:GC 573:BD 569:HD 565:HR 338:(K 321:(K 255:pc 250:ly 219:yr 203:yr 169:(R 1402:U 1397:R 1379:9 1374:6 1369:4 1351:λ 1346:ζ 1341:ε 1336:δ 1331:γ 1326:β 1270:e 1263:t 1256:v 1239:. 1233:: 1225:: 1177:. 1153:. 1126:. 1102:. 1074:: 1051:. 1045:: 1037:: 981:. 977:: 971:8 946:. 934:: 926:: 916:: 869:M 862:M 833:K 789:( 761:( 701:( 666:/ 663:ə 660:f 657:l 654:æ 651:t 648:ˈ 645:ɪ 642:k 639:/ 620:( 561:8 530:K 511:L 493:R 473:M 458:B 449:) 447:i 443:v 441:( 431:K 412:L 392:R 372:M 357:A 342:) 340:2 325:) 323:1 311:0 270:) 268:V 257:) 217:/ 201:/ 173:) 171:v

Index



Epoch
Equinox
Constellation
Equuleus
Right ascension
Declination
Apparent magnitude
Spectral type
color index
color index
Astrometry
Radial velocity
Proper motion
mas
yr
mas
yr
Parallax
mas
Distance
ly
pc
Absolute magnitude
Orbit
Period
Eccentricity
Semi-amplitude
Mass

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