29:
794:
28:
631:"Near-IR spectroscopy of asteroids 21 Lutetia, 89 Julia, 140 Siwa, 2181 Fogelin and 5480 (1989YK8), potential targets for the Rosetta mission; remote observations campaign on IRTF"
933:
868:
1228:
1198:
603:
Pilcher, Frederick (April 2011), "Rotation Period
Determinations for 25 Phocaea, 140 Siwa, 149 Medusa 186 Celuta, 475 Ocllo, 574 Reginhild, and 603 Timandra",
344:
926:
1208:
861:
138:
701:
Takir, Driss; Emery, Joshua P. (June 2012), "Outer Main Belt asteroids: Identification and distribution of four 3-μm spectral groups",
1223:
1218:
919:
894:
1050:
854:
44:
321:
982:
574:
229:
510:
Attempts to measure the rotation period of this asteroid have produced inconsistent results ranging from 14.7 to 32 hours.
1203:
1141:
1213:
815:
566:
967:
1131:
1121:
61:
1126:
504:
56:
962:
82:
1146:
1030:
942:
788:
425:
385:
351:
262:
258:
218:
200:
1067:
534:
515:
511:
675:
972:
877:
523:
333:
182:
1040:
706:
648:
608:
240:
776:
752:
744:
489:
310:
130:
768:
760:
735:
638:
439:
823:
1025:
977:
473:
206:
170:
1151:
807:
799:
714:
656:
477:
407:
163:
98:
839:
1072:
1015:
1000:
783:
542:
530:
431:
190:
710:
652:
612:
1087:
1055:
1020:
831:
793:
291:
251:
1192:
1111:
1010:
1005:
469:
272:
49:
1177:
950:
522:
with a period of 34.407 ± 0.002 hours and a brightness variation of 0.05 ± 0.01 in
500:
284:
150:
718:
660:
1167:
1116:
1077:
630:
519:
496:
299:
1136:
1082:
174:
578:
1172:
1062:
911:
900:
888:
481:
462:
362:
210:
156:
846:
992:
643:
465:
1103:
538:
493:
392:
370:
915:
850:
514:
observations of this asteroid at the Organ Mesa
Observatory in
396:
107:
113:
541:
minerals found. The classification was later revised to a
503:
in July, 2008. However, the mission was rerouted to comet
104:
110:
1160:
1102:
1039:
991:
949:
437:
423:
405:
383:
369:
350:
343:
331:
319:
309:
297:
282:
269:
249:
239:
227:
217:
199:
189:
162:
148:
136:
124:
101:
92:
80:
75:
67:
55:
43:
38:
705:, vol. 219, no. 2, pp. 641–654,
529:A 2004 study of the spectrum matched a typical
927:
862:
637:, vol. 9, no. 5, pp. 343–351,
598:
596:
8:
624:
622:
607:, vol. 38, no. 2, pp. 76–78,
537:makeup. There are no absorption features of
21:
468:that was discovered by Austrian astronomer
955:
934:
920:
912:
869:
855:
847:
792:
27:
642:
629:Birlan, Mirel; et al. (April 2004),
1229:Astronomical objects discovered in 1874
1199:Minor planet object articles (numbered)
554:
499:was to visit Siwa on its way to comet
20:
560:
558:
472:on October 13, 1874, and named after
322:Longitude of ascending node
7:
797:
507:and the flyby had to be abandoned.
14:
235:2.73283 AU (408.826 Gm)
223:2.14323 AU (320.623 Gm)
740:AstDyS-2, Asteroids—Dynamic Site
97:
571:JPL Small-Body Database Browser
575:NASA Jet Propulsion Laboratory
518:during 2010 gave an irregular
1:
1209:Discoveries by Johann Palisa
719:10.1016/j.icarus.2012.02.022
661:10.1016/j.newast.2003.12.005
334:Argument of perihelion
1245:
151:Minor planet category
1224:Xc-type asteroids (SMASS)
1219:P-type asteroids (Tholen)
958:
943:Small Solar System bodies
884:
605:The Minor Planet Bulletin
505:67P/Churyumov-Gerasimenko
452:
252:Orbital period (sidereal)
181:
169:
26:
440:Absolute magnitude
345:Physical characteristics
139:Alternative designations
878:Minor planets navigator
789:JPL Small-Body Database
386:Synodic rotation period
164:Orbital characteristics
1068:Trans-Neptunian object
753:Observation prediction
535:carbonaceous chondrite
516:Las Cruces, New Mexico
674:Greyzeck, Ed (2013),
183:Uncertainty parameter
1204:Background asteroids
1041:Distant minor planet
565:Yeomans, Donald K.,
461:is a large and dark
83:MPC designation
1214:Named minor planets
840:Physical parameters
711:2012Icar..219..641T
653:2004NewA....9..343B
613:2011MPBu...38...76P
195:139.10 yr (50805 d)
68:Discovery date
62:Austrian Naval Obs.
57:Discovery site
23:
777:Observational info
581:on 30 January 2016
45:Discovered by
16:Main-belt asteroid
1186:
1185:
1098:
1097:
983:Meanings of names
909:
908:
456:
455:
305:0° 13 5.398 / day
1236:
956:
936:
929:
922:
913:
871:
864:
857:
848:
832:Orbital elements
796:
723:
722:
698:
692:
691:
689:
687:
671:
665:
664:
646:
644:astro-ph/0312638
626:
617:
616:
600:
591:
590:
588:
586:
577:, archived from
562:
419:
417:
408:Geometric albedo
378:
365:
360:
144:A874 TB; 1948 AL
120:
119:
116:
115:
112:
109:
106:
103:
31:
24:
1244:
1243:
1239:
1238:
1237:
1235:
1234:
1233:
1189:
1188:
1187:
1182:
1156:
1094:
1035:
987:
945:
940:
910:
905:
880:
875:
769:Proper elements
732:
727:
726:
700:
699:
695:
685:
683:
680:NSS Data Center
673:
672:
668:
628:
627:
620:
602:
601:
594:
584:
582:
564:
563:
556:
551:
543:P-type asteroid
531:C-type asteroid
445:
432:C-type asteroid
428:
415:
413:
410:
400:
388:
376:
358:
356:
336:
324:
302:
287:
275:
254:
232:
230:Semi-major axis
191:Observation arc
153:
141:
127:
100:
96:
85:
71:13 October 1874
34:
33:Orbital diagram
17:
12:
11:
5:
1242:
1240:
1232:
1231:
1226:
1221:
1216:
1211:
1206:
1201:
1191:
1190:
1184:
1183:
1181:
1180:
1175:
1170:
1164:
1162:
1158:
1157:
1155:
1154:
1149:
1144:
1142:Near-parabolic
1139:
1134:
1129:
1124:
1119:
1114:
1108:
1106:
1100:
1099:
1096:
1095:
1093:
1092:
1091:
1090:
1088:Scattered disc
1085:
1080:
1075:
1065:
1060:
1059:
1058:
1056:Neptune trojan
1053:
1045:
1043:
1037:
1036:
1034:
1033:
1031:Spectral types
1028:
1023:
1021:Jupiter trojan
1018:
1013:
1008:
1003:
997:
995:
989:
988:
986:
985:
980:
975:
970:
965:
959:
953:
947:
946:
941:
939:
938:
931:
924:
916:
907:
906:
904:
903:
898:
891:
885:
882:
881:
876:
874:
873:
866:
859:
851:
845:
844:
843:
842:
800:Close approach
781:
780:
779:
731:
730:External links
728:
725:
724:
693:
666:
618:
592:
553:
552:
550:
547:
454:
453:
450:
449:
446:
438:
435:
434:
429:
424:
421:
420:
411:
406:
403:
402:
389:
384:
381:
380:
373:
367:
366:
354:
348:
347:
341:
340:
337:
332:
329:
328:
325:
320:
317:
316:
313:
307:
306:
303:
298:
295:
294:
288:
283:
280:
279:
276:
270:
267:
266:
255:
250:
247:
246:
243:
237:
236:
233:
228:
225:
224:
221:
215:
214:
203:
197:
196:
193:
187:
186:
179:
178:
173:31 July 2016 (
167:
166:
160:
159:
154:
149:
146:
145:
142:
137:
134:
133:
128:
125:
122:
121:
94:
90:
89:
86:
81:
78:
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72:
69:
65:
64:
59:
53:
52:
47:
41:
40:
36:
35:
32:
15:
13:
10:
9:
6:
4:
3:
2:
1241:
1230:
1227:
1225:
1222:
1220:
1217:
1215:
1212:
1210:
1207:
1205:
1202:
1200:
1197:
1196:
1194:
1179:
1176:
1174:
1171:
1169:
1166:
1165:
1163:
1159:
1153:
1150:
1148:
1145:
1143:
1140:
1138:
1135:
1133:
1130:
1128:
1125:
1123:
1120:
1118:
1115:
1113:
1110:
1109:
1107:
1105:
1101:
1089:
1086:
1084:
1081:
1079:
1076:
1074:
1071:
1070:
1069:
1066:
1064:
1061:
1057:
1054:
1052:
1049:
1048:
1047:
1046:
1044:
1042:
1038:
1032:
1029:
1027:
1024:
1022:
1019:
1017:
1014:
1012:
1011:Asteroid belt
1009:
1007:
1006:Aten asteroid
1004:
1002:
999:
998:
996:
994:
990:
984:
981:
979:
976:
974:
971:
969:
966:
964:
961:
960:
957:
954:
952:
951:Minor planets
948:
944:
937:
932:
930:
925:
923:
918:
917:
914:
902:
899:
897:
896:
892:
890:
887:
886:
883:
879:
872:
867:
865:
860:
858:
853:
852:
849:
841:
837:
833:
829:
825:
824:Orbit diagram
821:
817:
813:
809:
805:
801:
798:
795:
791:
790:
785:
782:
778:
774:
770:
766:
762:
758:
754:
750:
746:
743:
742:
741:
737:
734:
733:
729:
720:
716:
712:
708:
704:
697:
694:
681:
677:
670:
667:
662:
658:
654:
650:
645:
640:
636:
635:New Astronomy
632:
625:
623:
619:
614:
610:
606:
599:
597:
593:
580:
576:
572:
568:
561:
559:
555:
548:
546:
544:
540:
536:
533:with typical
532:
527:
525:
521:
517:
513:
508:
506:
502:
498:
495:
492:
491:
485:
483:
479:
475:
471:
470:Johann Palisa
467:
464:
460:
451:
447:
444:
443:
436:
433:
430:
427:
426:Spectral type
422:
412:
409:
404:
398:
395:(1.4352
394:
390:
387:
382:
374:
372:
368:
364:
355:
353:
349:
346:
342:
338:
335:
330:
326:
323:
318:
314:
312:
308:
304:
301:
296:
293:
289:
286:
281:
277:
274:
273:orbital speed
268:
264:
260:
256:
253:
248:
244:
242:
238:
234:
231:
226:
222:
220:
216:
212:
209:(497.02
208:
204:
202:
198:
194:
192:
188:
184:
180:
176:
172:
168:
165:
161:
158:
155:
152:
147:
143:
140:
135:
132:
129:
123:
118:
95:
93:Pronunciation
91:
87:
84:
79:
74:
70:
66:
63:
60:
58:
54:
51:
48:
46:
42:
37:
30:
25:
19:
1178:Space debris
893:
835:
827:
819:
811:
803:
787:
772:
764:
761:Orbital info
756:
748:
739:
702:
696:
684:, retrieved
679:
669:
634:
604:
583:, retrieved
579:the original
570:
528:
509:
501:46P/Wirtanen
488:
486:
458:
457:
441:
391:34.445
285:Mean anomaly
241:Eccentricity
205:3.3224
76:Designations
18:
1168:Cosmic dust
1132:Long-period
1122:Halley-type
1078:Kuiper belt
963:Designation
520:light curve
512:Photometric
480:goddess of
311:Inclination
300:Mean motion
126:Named after
1193:Categories
1173:Meteoroids
1152:Sungrazing
1127:Hyperbolic
1083:Oort cloud
1026:Near-Earth
889:139 Juewa
567:"140 Siwa"
549:References
476:(Šiwa), a
352:Dimensions
278:17.80 km/s
219:Perihelion
177:2457600.5)
88:(140) Siwa
1063:Damocloid
901:141 Lumen
816:Ephemeris
808:Discovery
745:Ephemeris
676:"Rosetta"
524:magnitude
482:fertility
463:main-belt
361:3.0
157:Main belt
50:J. Palisa
39:Discovery
1147:Periodic
1073:Detached
993:Asteroid
895:140 Siwa
784:140 Siwa
736:140 Siwa
686:30 March
466:asteroid
459:140 Siwa
401:34.407 h
339:196.711°
327:107.263°
271:Average
261:(1650.1
201:Aphelion
22:140 Siwa
1112:Extinct
1051:Centaur
786:at the
707:Bibcode
649:Bibcode
609:Bibcode
490:Rosetta
315:3.1860°
290:200.674
245:0.21575
1104:Comets
1016:Family
1001:Active
968:Groups
836:·
834:
828:·
826:
820:·
818:
812:·
810:
804:·
802:
773:·
771:
765:·
763:
757:·
755:
749:·
747:
703:Icarus
682:, NASA
585:12 May
478:Slavic
414:0.0676
357:109.79
1161:Other
1117:Great
838:
830:
822:
814:
806:
775:
767:
759:
751:
639:arXiv
539:mafic
497:probe
494:comet
418:0.004
379:10 kg
257:4.52
171:Epoch
1137:Lost
978:Moon
973:List
688:2013
587:2016
487:The
474:Živa
448:8.34
371:Mass
131:Živa
738:at
715:doi
657:doi
442:(H)
375:1.4
1195::
713:,
678:,
655:,
647:,
633:,
621:^
595:^
573:,
569:,
557:^
545:.
526:.
484:.
363:km
259:yr
211:Gm
207:AU
175:JD
108:iː
935:e
928:t
921:v
870:e
863:t
856:v
721:.
717::
709::
690:.
663:.
659::
651::
641::
615:.
611::
589:.
416:±
399:)
397:d
393:h
377:×
359:±
292:°
265:)
263:d
213:)
185:0
117:/
114:ə
111:w
105:ʃ
102:ˈ
99:/
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