Knowledge (XXG)

1995 Hajek

Source 📝

1401: 620:
strongly disagrees with the space-based observations and assumes a standard albedo for stony asteroids of 0.200 and calculates a much smaller diameter of 6.5 kilometers. These contrasting albedo and diameter figures closely correspond to a generic magnitude-to-diameter conversion, where, for an
1009:
Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey".
811:
Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results".
1540: 1475: 1830: 1805: 656: 637:(1525–1600), better known by his Latinized name, Thaddaeus Hagecius. He was one of the founders of modern stellar and cometary astronomy, who studied the 300: 1815: 1533: 1468: 1289: 749: 1501: 94: 594: 1526: 1657: 1461: 1314: 621:
absolute magnitude of 13.3, the body's diameter is in the range of 6 to 14 kilometers, based on an albedo between 0.05 and 0.25.
29: 561:
was obtained by French amateur astronomers Alain Klotz, Marc Rieugné, and Pierre Thierry in October 2013. It gave a provisional
277: 1088:
Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015).
1589: 1037: 202: 693: 1810: 1748: 1820: 1422: 1574: 1738: 1728: 938:
Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012).
867:
Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011).
778: 733: 1825: 1733: 1090:"Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 – Preliminary results" 697: 41: 1569: 67: 940:"Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids" 1753: 1637: 1549: 1395: 582: 404: 348: 307: 231: 191: 178: 1674: 1156: 1089: 939: 868: 665: 1209: 1579: 1484: 566: 487: 289: 160: 46: 634: 491: 83: 1647: 1383: 1359: 1351: 1336: 1269: 1168: 1111: 1019: 961: 890: 830: 514: 213: 1375: 1367: 1342: 660: 638: 613: 538: 518: 266: 1265: 1127: 1101: 1062: 977: 951: 906: 880: 846: 820: 426: 1430: 1632: 1584: 1285: 1184: 745: 651: 601: 571: 510: 483: 184: 148: 34: 1758: 1414: 1406: 1277: 1257: 1176: 1119: 1027: 969: 898: 838: 737: 365: 141: 1446: 1679: 1622: 1607: 1390: 1318: 590: 586: 562: 542: 418: 410: 168: 1324: 1273: 1172: 1115: 1023: 965: 894: 834: 1694: 1662: 1627: 1438: 1400: 1307: 1258: 1058: 522: 247: 224: 1311: 1799: 1718: 1617: 1612: 1234: 973: 910: 902: 842: 476: 1131: 981: 850: 1784: 1557: 741: 630: 506: 240: 132: 116: 1123: 701: 1774: 1723: 1684: 1330: 255: 1041: 1743: 1689: 1507: 1495: 1281: 1155:
Xu, Shui; Binzel, Richard P.; Burbine, Thomas H.; Bus, Schelte J. (May 1995).
554: 152: 1188: 1031: 869:"Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters" 612:
measures between 12.7 and 15.3 kilometers in diameter and its surface has an
1779: 1669: 1518: 534: 122: 1180: 1453: 1599: 526: 472: 1260:
Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008)
642: 605: 545:
by 20 years prior to the official discovery observation at Heidelberg.
1256:
Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs".
1106: 1710: 956: 885: 825: 1157:"Small main-belt asteroid spectroscopic survey: Initial results" 357: 1522: 1457: 490:
in Hamburg, Germany. It was named after Renaissance astronomer
1337:
Discovery Circumstances: Numbered Minor Planets (1)-(5000)
482:
It was discovered on 26 October 1971, by Czech astronomer
533:
at Heidelberg in 1941. The body's used observation was a
694:"JPL Small-Body Database Browser: 1995 Hajek (1971 UP1)" 604:
satellite and WISE space-telescope with its subsequent
1059:"Asteroids and comets rotation curves – (1995) Hajek" 600:
According to the surveys carried out by the Japanese
513:
once every 4.02 years (1,469 days). Its orbit has an
1767: 1709: 1646: 1598: 1556: 424: 402: 363: 346: 306: 299: 287: 275: 265: 253: 238: 222: 212: 200: 190: 177: 167: 140: 114: 92: 77: 65: 60: 52: 40: 28: 23: 1012:Publications of the Astronomical Society of Japan 565:of 10 hours with a brightness variation of 0.10 730:Dictionary of Minor Planet Names – (1995) Hajek 933: 931: 929: 927: 862: 860: 1534: 1469: 8: 1150: 1148: 1083: 1081: 1079: 1052: 1050: 18: 479:, approximately 13 kilometers in diameter. 1562: 1541: 1527: 1519: 1476: 1462: 1454: 1399: 728:Schmadel, Lutz D. (2007). "(1995) Hajek". 723: 721: 719: 655:is also named in his honour. The official 1331:Asteroids and comets rotation curves, CdR 1105: 955: 884: 824: 688: 686: 684: 682: 633:was named after the Bohemian astronomer 509:main-belt at a distance of 2.4–2.7  1831:Astronomical objects discovered in 1971 1806:Minor planet object articles (numbered) 1333:– Observatoire de Genève, Raoul Behrend 1004: 1002: 1000: 998: 678: 1264:. Springer Berlin Heidelberg. p.  806: 804: 802: 800: 798: 796: 773: 771: 769: 767: 765: 763: 761: 618:Collaborative Asteroid Lightcurve Link 17: 781:. Asteroid Lightcurve Database (LCDB) 278:Longitude of ascending node 7: 1404: 1308:Asteroid Lightcurve Database (LCDB) 595:Wide-field Infrared Survey Explorer 589:. It is also classified as a dark 14: 944:The Astrophysical Journal Letters 1347:AstDyS-2, Asteroids—Dynamic Site 1325:Dictionary of Minor Planet Names 742:10.1007/978-3-540-29925-7_1996 475:from the middle region of the 1: 1816:Discoveries by Luboš Kohoutek 529:. It was first identified as 1124:10.1016/j.icarus.2015.08.007 779:"LCDB Data for (1995) Hajek" 290:Argument of perihelion 1847: 974:10.1088/2041-8205/759/1/L8 903:10.1088/0004-637X/741/2/68 843:10.1088/0004-637X/741/2/90 734:Springer Berlin Heidelberg 464:, provisional designation 117:Minor planet category 1565: 1550:Small Solar System bodies 1491: 1282:10.1007/978-3-642-01965-4 1235:"Asteroid Size Estimator" 873:The Astrophysical Journal 813:The Astrophysical Journal 698:Jet Propulsion Laboratory 455: 225:Orbital period (sidereal) 159: 147: 1317:16 December 2017 at the 696:(2017-06-04 last obs.). 616:of 0.040 and 0.083. The 549:Physical characteristics 498:Orbit and classification 427:Absolute magnitude  301:Physical characteristics 95:Alternative designations 1485:Minor planets navigator 1396:JPL Small-Body Database 1210:"1995 Hajek (1971 UP1)" 541:in 1951, extending its 349:Synodic rotation period 142:Orbital characteristics 1675:Trans-Neptunian object 1360:Observation prediction 1181:10.1006/icar.1995.1075 1032:10.1093/pasj/63.5.1117 505:orbits the Sun in the 173:76.21 yr (27,836 days) 1339:– Minor Planet Center 659:was published by the 488:Bergedorf Observatory 161:Uncertainty parameter 1811:Background asteroids 1648:Distant minor planet 525:with respect to the 68:MPC designation 1821:Named minor planets 1447:Physical parameters 1274:2009dmpn.book.....S 1214:Minor Planet Center 1173:1995Icar..115....1X 1116:2015Icar..261...34V 1042:AcuA catalog p. 153 1024:2011PASJ...63.1117U 966:2012ApJ...759L...8M 895:2011ApJ...741...68M 835:2011ApJ...741...90M 704:on 20 December 2016 661:Minor Planet Center 649:. The lunar crater 639:Great Comet of 1577 583:spectral properties 553:A first rotational 539:Palomar Observatory 53:Discovery date 42:Discovery site 20: 1384:Observational info 1063:Geneva Observatory 641:and the supernova 151:4 September 2017 ( 30:Discovered by 1793: 1792: 1705: 1704: 1590:Meanings of names 1516: 1515: 1291:978-3-642-01964-7 751:978-3-540-00238-3 663:on 1 April 1978 ( 459: 458: 1838: 1826:X-type asteroids 1563: 1543: 1536: 1529: 1520: 1478: 1471: 1464: 1455: 1439:Orbital elements 1403: 1296: 1295: 1263: 1253: 1247: 1246: 1244: 1242: 1237:. CNEOS NASA/JPL 1231: 1225: 1224: 1222: 1220: 1206: 1200: 1199: 1197: 1195: 1152: 1143: 1142: 1140: 1138: 1109: 1085: 1074: 1073: 1071: 1069: 1057:Behrend, Raoul. 1054: 1045: 1035: 1018:(5): 1117–1138. 1006: 993: 992: 990: 988: 959: 935: 922: 921: 919: 917: 888: 864: 855: 854: 828: 808: 791: 790: 788: 786: 775: 756: 755: 725: 714: 713: 711: 709: 700:. Archived from 690: 669: 645:, also known as 574: 532: 471:, is a metallic 470: 446: 444: 398: 393: 391: 385: 383: 377: 375: 366:Geometric albedo 356: 341: 339: 332: 330: 323: 321: 315: 136: 105: 88: 21: 1846: 1845: 1841: 1840: 1839: 1837: 1836: 1835: 1796: 1795: 1794: 1789: 1763: 1701: 1642: 1594: 1552: 1547: 1517: 1512: 1487: 1482: 1376:Proper elements 1319:Wayback Machine 1304: 1299: 1292: 1255: 1254: 1250: 1240: 1238: 1233: 1232: 1228: 1218: 1216: 1208: 1207: 1203: 1193: 1191: 1154: 1153: 1146: 1136: 1134: 1087: 1086: 1077: 1067: 1065: 1056: 1055: 1048: 1008: 1007: 996: 986: 984: 937: 936: 925: 915: 913: 866: 865: 858: 810: 809: 794: 784: 782: 777: 776: 759: 752: 736:. p. 161. 727: 726: 717: 707: 705: 692: 691: 680: 676: 664: 657:naming citation 627: 591:P-type asteroid 587:X-type asteroid 570: 563:rotation period 551: 543:observation arc 530: 517:of 0.05 and an 500: 469: 465: 442: 440: 432: 407: 396: 394: 389: 387: 386: 381: 379: 378: 373: 371: 368: 354: 351: 337: 335: 334: 328: 326: 325: 319: 317: 316: 313: 292: 280: 258: 243: 227: 205: 203:Semi-major axis 169:Observation arc 130: 119: 104: 100: 97: 86: 80: 70: 56:26 October 1971 12: 11: 5: 1844: 1842: 1834: 1833: 1828: 1823: 1818: 1813: 1808: 1798: 1797: 1791: 1790: 1788: 1787: 1782: 1777: 1771: 1769: 1765: 1764: 1762: 1761: 1756: 1751: 1749:Near-parabolic 1746: 1741: 1736: 1731: 1726: 1721: 1715: 1713: 1707: 1706: 1703: 1702: 1700: 1699: 1698: 1697: 1695:Scattered disc 1692: 1687: 1682: 1672: 1667: 1666: 1665: 1663:Neptune trojan 1660: 1652: 1650: 1644: 1643: 1641: 1640: 1638:Spectral types 1635: 1630: 1628:Jupiter trojan 1625: 1620: 1615: 1610: 1604: 1602: 1596: 1595: 1593: 1592: 1587: 1582: 1577: 1572: 1566: 1560: 1554: 1553: 1548: 1546: 1545: 1538: 1531: 1523: 1514: 1513: 1511: 1510: 1505: 1498: 1492: 1489: 1488: 1483: 1481: 1480: 1473: 1466: 1458: 1452: 1451: 1450: 1449: 1407:Close approach 1388: 1387: 1386: 1340: 1334: 1328: 1327:, Google books 1322: 1310:, query form ( 1303: 1302:External links 1300: 1298: 1297: 1290: 1248: 1226: 1201: 1144: 1075: 1046: 994: 923: 856: 792: 757: 750: 715: 677: 675: 672: 626: 623: 585:of a metallic 550: 547: 499: 496: 484:Luboš Kohoutek 467: 457: 456: 453: 452: 433: 425: 422: 421: 408: 403: 400: 399: 369: 364: 361: 360: 352: 347: 344: 343: 310: 304: 303: 297: 296: 293: 288: 285: 284: 281: 276: 273: 272: 269: 263: 262: 261:0° 14 42 / day 259: 254: 251: 250: 244: 239: 236: 235: 228: 223: 220: 219: 216: 210: 209: 206: 201: 198: 197: 194: 188: 187: 181: 175: 174: 171: 165: 164: 157: 156: 145: 144: 138: 137: 120: 115: 112: 111: 102: 98: 93: 90: 89: 81: 78: 75: 74: 71: 66: 63: 62: 58: 57: 54: 50: 49: 47:Bergedorf Obs. 44: 38: 37: 32: 26: 25: 13: 10: 9: 6: 4: 3: 2: 1843: 1832: 1829: 1827: 1824: 1822: 1819: 1817: 1814: 1812: 1809: 1807: 1804: 1803: 1801: 1786: 1783: 1781: 1778: 1776: 1773: 1772: 1770: 1766: 1760: 1757: 1755: 1752: 1750: 1747: 1745: 1742: 1740: 1737: 1735: 1732: 1730: 1727: 1725: 1722: 1720: 1717: 1716: 1714: 1712: 1708: 1696: 1693: 1691: 1688: 1686: 1683: 1681: 1678: 1677: 1676: 1673: 1671: 1668: 1664: 1661: 1659: 1656: 1655: 1654: 1653: 1651: 1649: 1645: 1639: 1636: 1634: 1631: 1629: 1626: 1624: 1621: 1619: 1618:Asteroid belt 1616: 1614: 1613:Aten asteroid 1611: 1609: 1606: 1605: 1603: 1601: 1597: 1591: 1588: 1586: 1583: 1581: 1578: 1576: 1573: 1571: 1568: 1567: 1564: 1561: 1559: 1558:Minor planets 1555: 1551: 1544: 1539: 1537: 1532: 1530: 1525: 1524: 1521: 1509: 1506: 1504: 1503: 1499: 1497: 1494: 1493: 1490: 1486: 1479: 1474: 1472: 1467: 1465: 1460: 1459: 1456: 1448: 1444: 1440: 1436: 1432: 1431:Orbit diagram 1428: 1424: 1420: 1416: 1412: 1408: 1405: 1402: 1398: 1397: 1392: 1389: 1385: 1381: 1377: 1373: 1369: 1365: 1361: 1357: 1353: 1350: 1349: 1348: 1344: 1341: 1338: 1335: 1332: 1329: 1326: 1323: 1320: 1316: 1313: 1309: 1306: 1305: 1301: 1293: 1287: 1283: 1279: 1275: 1271: 1267: 1262: 1261: 1252: 1249: 1236: 1230: 1227: 1215: 1211: 1205: 1202: 1190: 1186: 1182: 1178: 1174: 1170: 1166: 1162: 1158: 1151: 1149: 1145: 1133: 1129: 1125: 1121: 1117: 1113: 1108: 1103: 1099: 1095: 1091: 1084: 1082: 1080: 1076: 1064: 1060: 1053: 1051: 1047: 1043: 1039: 1033: 1029: 1025: 1021: 1017: 1013: 1005: 1003: 1001: 999: 995: 983: 979: 975: 971: 967: 963: 958: 953: 949: 945: 941: 934: 932: 930: 928: 924: 912: 908: 904: 900: 896: 892: 887: 882: 878: 874: 870: 863: 861: 857: 852: 848: 844: 840: 836: 832: 827: 822: 818: 814: 807: 805: 803: 801: 799: 797: 793: 780: 774: 772: 770: 768: 766: 764: 762: 758: 753: 747: 743: 739: 735: 731: 724: 722: 720: 716: 703: 699: 695: 689: 687: 685: 683: 679: 673: 671: 667: 662: 658: 654: 653: 648: 644: 640: 636: 632: 624: 622: 619: 615: 611: 607: 603: 598: 596: 592: 588: 584: 580: 576: 573: 568: 564: 560: 556: 548: 546: 544: 540: 536: 528: 524: 520: 516: 512: 508: 504: 497: 495: 493: 489: 485: 480: 478: 477:asteroid belt 474: 463: 454: 450: 438: 434: 431: 430: 423: 420: 416: 412: 409: 406: 405:Spectral type 401: 370: 367: 362: 359: 353: 350: 345: 311: 309: 305: 302: 298: 294: 291: 286: 282: 279: 274: 270: 268: 264: 260: 257: 252: 249: 245: 242: 237: 233: 229: 226: 221: 217: 215: 211: 207: 204: 199: 195: 193: 189: 186: 182: 180: 176: 172: 170: 166: 162: 158: 154: 150: 146: 143: 139: 134: 128: 124: 121: 118: 113: 109: 99: 96: 91: 85: 82: 76: 72: 69: 64: 59: 55: 51: 48: 45: 43: 39: 36: 33: 31: 27: 22: 16: 1785:Space debris 1500: 1442: 1434: 1426: 1418: 1410: 1394: 1379: 1371: 1368:Orbital info 1363: 1355: 1346: 1259: 1251: 1239:. Retrieved 1229: 1217:. Retrieved 1213: 1204: 1192:. Retrieved 1164: 1160: 1135:. Retrieved 1097: 1093: 1066:. Retrieved 1015: 1011: 985:. Retrieved 947: 943: 914:. Retrieved 876: 872: 816: 812: 783:. Retrieved 729: 706:. Retrieved 702:the original 650: 647:Tycho's Nova 646: 635:Tadeáš Hájek 631:minor planet 628: 617: 609: 599: 578: 577: 558: 552: 515:eccentricity 502: 501: 492:Tadeáš Hájek 481: 461: 460: 448: 436: 428: 414: 314:(calculated) 241:Mean anomaly 234:(1,469 days) 214:Eccentricity 126: 110: 1941 EA 107: 87:(astronomer) 84:Tadeáš Hájek 73:(1995) Hajek 61:Designations 15: 1775:Cosmic dust 1739:Long-period 1729:Halley-type 1685:Kuiper belt 1570:Designation 1496:1994 Shane 1194:17 December 1167:(1): 1–35. 519:inclination 435:12.80  267:Inclination 256:Mean motion 79:Named after 35:L. Kohoutek 1800:Categories 1780:Meteoroids 1759:Sungrazing 1734:Hyperbolic 1690:Oort cloud 1633:Near-Earth 1508:1996 Adams 1502:1995 Hajek 1391:1995 Hajek 1343:1995 Hajek 1241:21 October 1219:8 December 1137:8 December 1107:1506.00762 1068:8 December 987:8 December 916:8 December 785:8 December 674:References 593:by NASA's 555:lightcurve 462:1995 Hajek 308:Dimensions 192:Perihelion 155:2458000.5) 19:1995 Hajek 1670:Damocloid 1423:Ephemeris 1415:Discovery 1352:Ephemeris 1189:0019-1035 1100:: 34–47. 957:1209.5794 911:118745497 886:1109.4096 879:(2): 20. 826:1109.6407 819:(2): 25. 608:mission, 567:magnitude 537:taken at 535:precovery 451: 13.3 397:(assumed) 208:2.5294 AU 196:2.3911 AU 123:main-belt 24:Discovery 1754:Periodic 1680:Detached 1600:Asteroid 1315:Archived 1132:53493339 982:46350317 950:(1): 5. 851:35447010 652:Hagecius 597:(WISE). 581:has the 527:ecliptic 473:asteroid 312:6.50 km 179:Aphelion 1719:Extinct 1658:Centaur 1393:at the 1270:Bibcode 1169:Bibcode 1112:Bibcode 1020:Bibcode 962:Bibcode 891:Bibcode 831:Bibcode 643:SN 1572 606:NEOWISE 531:1941 EA 486:at the 466:1971 UP 295:134.65° 283:47.232° 271:10.825° 183:2.6677 101:1971 UP 1711:Comets 1623:Family 1608:Active 1575:Groups 1443:· 1441:  1435:· 1433:  1427:· 1425:  1419:· 1417:  1411:· 1409:  1380:· 1378:  1372:· 1370:  1364:· 1362:  1356:· 1354:  1288:  1187:  1161:Icarus 1130:  1094:Icarus 1038:online 980:  909:  849:  748:  708:1 July 666:M.P.C. 625:Naming 614:albedo 507:middle 449:· 447:  437:· 415:· 413:  392:0.0249 388:0.0833 318:12.683 246:6.1573 218:0.0547 133:middle 127:· 125:  108:· 106:  1768:Other 1724:Great 1445: 1437: 1429: 1421: 1413: 1382: 1374: 1366: 1358: 1128:S2CID 1102:arXiv 978:S2CID 952:arXiv 907:S2CID 881:arXiv 847:S2CID 821:arXiv 629:This 610:Hajek 602:Akari 579:Hajek 559:Hajek 521:of 11 503:Hajek 441:13.06 439: 417: 395:0.20 384:0.010 380:0.063 376:0.025 372:0.040 336:15.29 327:14.45 322:0.288 230:4.02 149:Epoch 129: 1744:Lost 1585:Moon 1580:List 1312:info 1286:ISBN 1243:2019 1221:2016 1196:2015 1185:ISSN 1139:2016 1070:2016 989:2016 918:2016 787:2016 746:ISBN 710:2017 668:4358 572:U=1+ 445:0.33 340:1.04 331:2.58 1345:at 1278:doi 1266:221 1177:doi 1165:115 1120:doi 1098:261 1028:doi 970:doi 948:759 899:doi 877:741 839:doi 817:741 738:doi 670:). 575:). 557:of 429:(H) 1802:: 1284:. 1276:. 1268:. 1212:. 1183:. 1175:. 1163:. 1159:. 1147:^ 1126:. 1118:. 1110:. 1096:. 1092:. 1078:^ 1061:. 1049:^ 1040:, 1026:. 1016:63 1014:. 997:^ 976:. 968:. 960:. 946:. 942:. 926:^ 905:. 897:. 889:. 875:. 871:. 859:^ 845:. 837:. 829:. 815:. 795:^ 760:^ 744:. 732:. 718:^ 681:^ 511:AU 494:. 355:10 342:km 333:km 324:km 232:yr 185:AU 153:JD 1542:e 1535:t 1528:v 1477:e 1470:t 1463:v 1321:) 1294:. 1280:: 1272:: 1245:. 1223:. 1198:. 1179:: 1171:: 1141:. 1122:: 1114:: 1104:: 1072:. 1044:) 1036:( 1034:. 1030:: 1022:: 991:. 972:: 964:: 954:: 920:. 901:: 893:: 883:: 853:. 841:: 833:: 823:: 789:. 754:. 740:: 712:. 569:( 523:° 468:1 443:± 419:X 411:P 390:± 382:± 374:± 358:h 338:± 329:± 320:± 248:° 163:0 135:) 131:( 103:1

Index

Discovered by
L. Kohoutek
Discovery site
Bergedorf Obs.
MPC designation
Tadeáš Hájek
Alternative designations
Minor planet category
main-belt
middle
Orbital characteristics
Epoch
JD
Uncertainty parameter
Observation arc
Aphelion
AU
Perihelion
Semi-major axis
Eccentricity
Orbital period (sidereal)
yr
Mean anomaly
°
Mean motion
Inclination
Longitude of ascending node
Argument of perihelion
Physical characteristics
Dimensions

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.