Knowledge (XXG)

895 Helio

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Yang, B.; et al. (November 2020), "Physical and dynamical characterization of the Euphrosyne asteroid family",
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Polakis, Tom; Skiff, Brian A. (October 2016), "Lightcurve Analysis for Asteroids 895 Helio and 1108 Demeter",
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Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers
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about 150 km in diameter. It was discovered on 11 July 1918 by German astronomer
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analysis provides a rotation period of 9.4 hours.
154: 713: 711: 145: 95: 1218: 1160: 1097: 1049: 1007: 673:Carry, B. (December 2012), "Density of asteroids", 488: 473: 455: 443: 423: 410: 398: 375: 368: 355: 344: 333: 321: 309: 299: 287: 272: 252: 242: 230: 220: 202: 192: 165: 139: 136: 124: 112: 89: 86: 77: 65: 60: 52: 40: 28: 23: 594: 566:. It shares similar orbital properties with the 1291: 1262:This article about an asteroid native to the 985: 920: 8: 644:"JPL Small-Body Database Browser: 895 Helio" 18: 668: 666: 664: 1298: 1284: 1013: 992: 978: 970: 927: 913: 905: 850: 758: 682: 638: 636: 634: 632: 630: 628: 626: 624: 1347:Astronomical objects discovered in 1918 1317:Minor planet object articles (numbered) 586: 17: 312:Longitude of ascending node 7: 1252: 1250: 615:participating institution membership 573:, but is most likely an interloper. 855: 1270:. You can help Knowledge (XXG) by 14: 677:, vol. 73, pp. 98–118, 351:1.60187 AU (239.636 Gm) 340:1.75069 AU (261.899 Gm) 1254: 798:AstDyS-2, Asteroids—Dynamic Site 527:, whose spectrum was studied by 523:. It is named after the element 132: 82: 238:3.2024 AU (479.07 Gm) 226:2.7362 AU (409.33 Gm) 1: 747:Astronomy & Astrophysics 1337:FCB-type asteroids (Tholen) 777:10.1051/0004-6361/202038567 675:Planetary and Space Science 324:Argument of perihelion 1368: 1249: 1016: 1001:Small Solar System bodies 942: 701:10.1016/j.pss.2012.03.009 648:Jet Propulsion Laboratory 602:Oxford English Dictionary 503: 255:Orbital period (sidereal) 184: 172: 1352:Main-belt-asteroid stubs 1342:B-type asteroids (SMASS) 491:Absolute magnitude  446:Sidereal rotation period 370:Physical characteristics 115:Alternative designations 1327:Discoveries by Max Wolf 936:Minor planets navigator 847:JPL Small-Body Database 769:2020A&A...643A..38Y 693:2012P&SS...73...98C 607:Oxford University Press 426:Synodic rotation period 167:Orbital characteristics 1126:Trans-Neptunian object 811:Observation prediction 533:Carl David Tolmé Runge 512:is a large dark outer 198:109.79 yr (40100 days) 405:(9.87 ± 6.05) × 10 kg 186:Uncertainty parameter 1322:Euphrosyne asteroids 1099:Distant minor planet 68:MPC designation 1332:Named minor planets 898:Physical parameters 732:2016MPBu...43..310P 605:(Online ed.). 53:Discovery date 42:Discovery site 20: 835:Observational info 539:itself comes from 295:0° 10 19.164 / day 30:Discovered by 1279: 1278: 1244: 1243: 1156: 1155: 1041:Meanings of names 967: 966: 613:(Subscription or 529:Friedrich Paschen 507: 506: 1359: 1300: 1293: 1286: 1258: 1251: 1014: 994: 987: 980: 971: 929: 922: 915: 906: 890:Orbital elements 854: 781: 780: 762: 742: 736: 735: 715: 706: 704: 686: 670: 659: 658: 656: 654: 640: 619: 618: 610: 598: 591: 469: 467: 458:Geometric albedo 419:5.76 ± 3.58 g/cm 406: 391: 389: 383:148.43 ± 5.02 km 161: 160: 157: 156: 153: 150: 147: 144: 141: 138: 108: 107: 104: 103: 100: 97: 94: 91: 88: 21: 1367: 1366: 1362: 1361: 1360: 1358: 1357: 1356: 1307: 1306: 1305: 1304: 1247: 1245: 1240: 1214: 1152: 1093: 1045: 1003: 998: 968: 963: 938: 933: 827:Proper elements 790: 785: 784: 744: 743: 739: 717: 716: 709: 672: 671: 662: 652: 650: 642: 641: 622: 612: 593: 592: 588: 583: 571:asteroid family 556:B-type asteroid 496: 478: 465: 463: 460: 448: 428: 416: 404: 387: 385: 384: 380: 360: 326: 314: 292: 277: 257: 235: 233:Semi-major axis 194:Observation arc 135: 131: 117: 85: 81: 70: 12: 11: 5: 1365: 1363: 1355: 1354: 1349: 1344: 1339: 1334: 1329: 1324: 1319: 1309: 1308: 1303: 1302: 1295: 1288: 1280: 1277: 1276: 1259: 1242: 1241: 1239: 1238: 1233: 1228: 1222: 1220: 1216: 1215: 1213: 1212: 1207: 1202: 1200:Near-parabolic 1197: 1192: 1187: 1182: 1177: 1172: 1166: 1164: 1158: 1157: 1154: 1153: 1151: 1150: 1149: 1148: 1146:Scattered disc 1143: 1138: 1133: 1123: 1118: 1117: 1116: 1114:Neptune trojan 1111: 1103: 1101: 1095: 1094: 1092: 1091: 1089:Spectral types 1086: 1081: 1079:Jupiter trojan 1076: 1071: 1066: 1061: 1055: 1053: 1047: 1046: 1044: 1043: 1038: 1033: 1028: 1023: 1017: 1011: 1005: 1004: 999: 997: 996: 989: 982: 974: 965: 964: 962: 961: 956: 949: 943: 940: 939: 934: 932: 931: 924: 917: 909: 903: 902: 901: 900: 858:Close approach 839: 838: 837: 789: 788:External links 786: 783: 782: 737: 707: 660: 620: 585: 584: 582: 579: 505: 504: 501: 500: 497: 489: 486: 485: 479: 474: 471: 470: 461: 456: 453: 452: 449: 444: 441: 440: 435:(0.39150  429: 424: 421: 420: 417: 411: 408: 407: 402: 396: 395: 381: 376: 373: 372: 366: 365: 362: 358: 353: 352: 349: 342: 341: 338: 331: 330: 327: 322: 319: 318: 315: 310: 307: 306: 303: 297: 296: 293: 288: 285: 284: 278: 273: 270: 269: 258: 253: 250: 249: 246: 240: 239: 236: 231: 228: 227: 224: 218: 217: 206: 200: 199: 196: 190: 189: 182: 181: 176:31 July 2016 ( 170: 169: 163: 162: 128: 122: 121: 118: 113: 110: 109: 79: 75: 74: 71: 66: 63: 62: 58: 57: 54: 50: 49: 44: 38: 37: 32: 26: 25: 13: 10: 9: 6: 4: 3: 2: 1364: 1353: 1350: 1348: 1345: 1343: 1340: 1338: 1335: 1333: 1330: 1328: 1325: 1323: 1320: 1318: 1315: 1314: 1312: 1301: 1296: 1294: 1289: 1287: 1282: 1281: 1275: 1273: 1269: 1265: 1264:asteroid belt 1260: 1257: 1253: 1248: 1237: 1234: 1232: 1229: 1227: 1224: 1223: 1221: 1217: 1211: 1208: 1206: 1203: 1201: 1198: 1196: 1193: 1191: 1188: 1186: 1183: 1181: 1178: 1176: 1173: 1171: 1168: 1167: 1165: 1163: 1159: 1147: 1144: 1142: 1139: 1137: 1134: 1132: 1129: 1128: 1127: 1124: 1122: 1119: 1115: 1112: 1110: 1107: 1106: 1105: 1104: 1102: 1100: 1096: 1090: 1087: 1085: 1082: 1080: 1077: 1075: 1072: 1070: 1069:Asteroid belt 1067: 1065: 1064:Aten asteroid 1062: 1060: 1057: 1056: 1054: 1052: 1048: 1042: 1039: 1037: 1034: 1032: 1029: 1027: 1024: 1022: 1019: 1018: 1015: 1012: 1010: 1009:Minor planets 1006: 1002: 995: 990: 988: 983: 981: 976: 975: 972: 960: 957: 955: 954: 950: 948: 945: 944: 941: 937: 930: 925: 923: 918: 916: 911: 910: 907: 899: 895: 891: 887: 883: 882:Orbit diagram 879: 875: 871: 867: 863: 859: 856: 853: 849: 848: 843: 840: 836: 832: 828: 824: 820: 816: 812: 808: 804: 801: 800: 799: 795: 792: 791: 787: 778: 774: 770: 766: 761: 756: 752: 748: 741: 738: 733: 729: 725: 721: 714: 712: 708: 702: 698: 694: 690: 685: 680: 676: 669: 667: 665: 661: 649: 645: 639: 637: 635: 633: 631: 629: 627: 625: 621: 616: 608: 604: 603: 597: 590: 587: 580: 578: 576: 572: 569: 568:31 Euphrosyne 565: 561: 557: 552: 550: 546: 542: 538: 534: 530: 526: 522: 518: 515: 511: 502: 498: 495: 494: 487: 484: 480: 477: 476:Spectral type 472: 462: 459: 454: 450: 447: 442: 438: 434: 430: 427: 422: 418: 415: 409: 403: 401: 397: 394: 382: 379: 378:Mean diameter 374: 371: 367: 363: 361: 354: 350: 348: 345:Jupiter  343: 339: 337: 332: 328: 325: 320: 316: 313: 308: 304: 302: 298: 294: 291: 286: 283: 279: 276: 271: 267: 263: 259: 256: 251: 247: 245: 241: 237: 234: 229: 225: 223: 219: 215: 212:(548.81  211: 207: 205: 201: 197: 195: 191: 187: 183: 179: 175: 171: 168: 164: 159: 129: 127: 123: 119: 116: 111: 106: 80: 78:Pronunciation 76: 72: 69: 64: 59: 55: 51: 48: 45: 43: 39: 36: 33: 31: 27: 22: 16: 1272:expanding it 1261: 1246: 1236:Space debris 951: 893: 885: 877: 869: 861: 845: 830: 822: 819:Orbital info 814: 806: 797: 750: 746: 740: 723: 719: 705:See Table 1. 674: 651:. Retrieved 600: 589: 564:hedenbergite 553: 536: 509: 508: 492: 431:9.3959  275:Mean anomaly 244:Eccentricity 208:3.6686  61:Designations 56:11 July 1918 15: 1226:Cosmic dust 1190:Long-period 1180:Halley-type 1136:Kuiper belt 1021:Designation 575:Light curve 334:Earth  301:Inclination 290:Mean motion 73:(895) Helio 1311:Categories 1231:Meteoroids 1210:Sungrazing 1185:Hyperbolic 1141:Oort cloud 1084:Near-Earth 959:896 Sphinx 760:2009.04489 726:(4): 310, 617:required.) 581:References 554:This is a 222:Perihelion 180:2457600.5) 126:Adjectives 47:Heidelberg 1121:Damocloid 953:895 Helio 947:894 Erda 874:Ephemeris 866:Discovery 842:895 Helio 803:Ephemeris 794:895 Helio 684:1203.4336 545:Greek god 514:main-belt 510:895 Helio 24:Discovery 19:895 Helio 1205:Periodic 1131:Detached 1051:Asteroid 562:mineral 560:pyroxene 521:Max Wolf 517:asteroid 451:9.3959 h 329:178.108° 317:264.704° 264:(2093.2 204:Aphelion 35:Max Wolf 1170:Extinct 1109:Centaur 844:at the 765:Bibcode 728:Bibcode 689:Bibcode 596:"helio" 547:of the 414:density 386:109.568 359:Jupiter 305:26.077° 280:241.229 248:0.14558 130:Helian 120:1918 DU 1162:Comets 1074:Family 1059:Active 1026:Groups 894:· 892:  886:· 884:  878:· 876:  870:· 868:  862:· 860:  831:· 829:  823:· 821:  815:· 813:  807:· 805:  543:, the 541:Helios 537:helium 525:helium 464:0.0420 1266:is a 1219:Other 1175:Great 896: 888: 880: 872: 864: 833: 825: 817: 809: 779:, A38 755:arXiv 753:: 9, 679:arXiv 653:3 May 611: 468:0.002 412:Mean 390:1.987 364:3.019 260:5.73 174:Epoch 1268:stub 1195:Lost 1036:Moon 1031:List 655:2016 531:and 481:FCB/ 400:Mass 347:MOID 336:MOID 796:at 773:doi 751:643 697:doi 549:Sun 499:8.3 493:(H) 1313:: 771:, 763:, 749:, 724:43 722:, 710:^ 695:, 687:, 663:^ 646:. 623:^ 599:. 551:. 393:km 262:yr 214:Gm 210:AU 178:JD 143:iː 102:oʊ 93:iː 1299:e 1292:t 1285:v 1274:. 993:e 986:t 979:v 928:e 921:t 914:v 775:: 767:: 757:: 734:. 730:: 703:. 699:: 691:: 681:: 657:. 609:. 483:B 466:± 439:) 437:d 433:h 388:± 357:T 282:° 268:) 266:d 216:) 188:0 158:/ 155:n 152:ə 149:i 146:l 140:h 137:ˈ 134:/ 105:/ 99:i 96:l 90:h 87:ˈ 84:/

Index

Discovered by
Max Wolf
Discovery site
Heidelberg
MPC designation
/ˈhli/
Alternative designations
Adjectives
/ˈhliən/
Orbital characteristics
Epoch
JD
Uncertainty parameter
Observation arc
Aphelion
AU
Gm
Perihelion
Semi-major axis
Eccentricity
Orbital period (sidereal)
yr
d
Mean anomaly
°
Mean motion
Inclination
Longitude of ascending node
Argument of perihelion
MOID

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