29:
950:
562:
Infrared observations made in 1982 at
Konkoly showed a rapid variation that seemed to suggest a shorter rotation period of 1.5 hours; one of the fastest known at the time. However, an irregular shape was suggested as an alternative cause of the rapid variation. The present day established rotation
1364:
1089:
1024:
1384:
1354:
365:
1082:
559:. It was estimated to have an absolute magnitude of 8.459 ± 0.013 with a diameter of 96–118 km (60–73 mi) and an albedo of 0.06–0.04.
761:
Magri, Christopher; et al. (January 2007), "A radar survey of main-belt asteroids: Arecibo observations of 55 objects during 1999–2003",
570:. The return signal matched an effective diameter of 117 ± 21 km. A larger diameter value of 123.41 ± 4.07 km was obtained from the
1017:
810:
132:
1374:
342:
331:
1379:
1075:
1050:
1206:
1010:
44:
307:
1138:
619:
223:
1359:
1297:
574:
observations, with an albedo of 0.0557 ± 0.0039. A 2012 study gave a refined diameter estimate of 116.14 ± 3.93 km.
1369:
971:
525:
49:
1123:
1287:
1277:
571:
857:
Szecsenyi-Nagy, G. (1983), "127 Johanna - Is it really the most quickly spinning asteroid known at this moment?",
1282:
1118:
70:
352:
1302:
1186:
1098:
944:
721:
Tedesco, Edward F.; et al. (July 2002), "The
Midcourse Space Experiment Infrared Minor Planet Survey",
473:
422:
372:
212:
194:
1223:
532:. It is classified as a CX-type asteroid, indicating the spectrum shows properties of both a carbonaceous
1128:
1033:
556:
480:
319:
176:
826:
Toth, Imre (December 1997), "First lightcurve observations and rotation of minor planet 127 Johanna",
28:
1196:
862:
831:
770:
726:
662:
486:
234:
932:
908:
900:
567:
544:
296:
924:
916:
891:
652:
495:
979:
1181:
1133:
806:
200:
164:
796:
1307:
963:
955:
870:
839:
835:
778:
734:
670:
666:
442:
157:
86:
995:
1228:
1171:
1156:
939:
802:
552:
537:
533:
184:
859:
Asteroids, comets, meteors; Proceedings of the
Meeting, Uppsala, Sweden, June 20–22, 1983
866:
774:
730:
1243:
1211:
1176:
987:
949:
277:
245:
874:
843:
1348:
1267:
1166:
1161:
258:
1333:
1106:
270:
144:
782:
1323:
1272:
1233:
1056:
1044:
693:
548:
529:
459:
285:
124:
1292:
1238:
674:
168:
611:
1328:
1218:
1067:
518:
204:
150:
1002:
1148:
521:
543:
A photoelectric study was performed of this minor planet in 1991 at the
404:
465:
739:
1259:
657:
33:
A three-dimensional model of 127 Johanna based on its light curve
429:
390:
1071:
1006:
433:
795:
555:
of 6.94 ± 0.29 hours with a brightness variation of 0.2 in
107:
92:
89:
101:
566:
During 2001, 127 Johanna was observed by radar from the
528:
on 5 November 1872, and is believed to be named after
104:
1316:
1258:
1195:
1147:
1105:
647:Carry, B. (December 2012), "Density of asteroids",
493:
471:
458:
440:
420:
401:
389:
371:
364:
351:
340:
329:
317:
305:
295:
283:
268:
255:
243:
233:
221:
211:
193:
183:
156:
142:
130:
118:
98:
95:
80:
68:
63:
55:
43:
38:
756:
754:
752:
750:
725:, vol. 124, no. 124, pp. 583–591,
695:Courbes de rotation d'astéroïdes et de comètes
592:A Practical Dictionary of the English Language
1083:
1018:
716:
714:
712:
8:
21:
1365:Discoveries by Paul Henry and Prosper Henry
642:
640:
638:
636:
1111:
1090:
1076:
1068:
1025:
1011:
1003:
948:
524:that was discovered by French astronomers
27:
738:
687:
685:
656:
563:period of this object is 12.7988 hours.
1385:Astronomical objects discovered in 1872
1355:Minor planet object articles (numbered)
583:
20:
605:
603:
601:
599:
308:Longitude of ascending node
7:
830:, vol. 45, pp. 1625–1637,
953:
698:(in French), Observatoire de Genève
14:
651:, vol. 73, pp. 98–118,
896:AstDyS-2, Asteroids—Dynamic Site
861:, vol. 45, pp. 49–53,
798:Dictionary of minor planet names
85:
616:JPL Small-Body Database Browser
620:NASA Jet Propulsion Laboratory
1:
875:10.1016/S0032-0633(97)00141-4
844:10.1016/S0032-0633(97)00141-4
347:2.11 AU (315.95 Gm)
336:1.60 AU (239.57 Gm)
251:4.58 yr (1,671.3 d)
229:2.76 AU (412.31 Gm)
217:2.57 AU (384.67 Gm)
783:10.1016/j.icarus.2006.08.018
526:Paul Henry and Prosper Henry
50:Paul Henry and Prosper Henry
828:Planetary and Space Science
649:Planetary and Space Science
320:Argument of perihelion
1401:
1375:CX-type asteroids (Tholen)
572:Midcourse Space Experiment
547:in Hungary. The resulting
145:Minor planet category
1380:Ch-type asteroids (SMASS)
1114:
1099:Small Solar System bodies
1040:
675:10.1016/j.pss.2012.03.009
508:
246:Orbital period (sidereal)
175:
163:
26:
723:The Astronomical Journal
496:Absolute magnitude
366:Physical characteristics
133:Alternative designations
1034:Minor planets navigator
945:JPL Small-Body Database
836:1997P&SS...45.1625T
667:2012P&SS...73...98C
423:Synodic rotation period
158:Orbital characteristics
1224:Trans-Neptunian object
909:Observation prediction
396:(3.08 ± 1.35) × 10 kg
177:Uncertainty parameter
1360:Background asteroids
1197:Distant minor planet
801:, Berlin; New York:
610:Yeomans, Donald K.,
590:Noah Webster (1884)
71:MPC designation
1370:Named minor planets
996:Physical parameters
867:1983acm..proc...49S
775:2007Icar..186..126M
731:2002AJ....124..583T
568:Arecibo Observatory
545:Konkoly Observatory
56:Discovery date
23:
933:Observational info
189:98.53 yr (35989 d)
45:Discovered by
16:Main-belt asteroid
1342:
1341:
1254:
1253:
1139:Meanings of names
1065:
1064:
812:978-3-540-00238-3
551:showed a synodic
517:is a large, dark
512:
511:
291:0° 12 55.44 / day
1392:
1112:
1092:
1085:
1078:
1069:
1027:
1020:
1013:
1004:
988:Orbital elements
952:
879:
878:
854:
848:
847:
823:
817:
816:
792:
786:
785:
758:
745:
744:
742:
718:
707:
706:
705:
703:
692:Behrend, Raoul,
689:
680:
678:
660:
644:
631:
630:
628:
626:
607:
594:
588:
454:
452:
443:Geometric albedo
416:
414:
397:
385:
383:
114:
113:
110:
109:
106:
103:
100:
97:
94:
91:
31:
24:
1400:
1399:
1395:
1394:
1393:
1391:
1390:
1389:
1345:
1344:
1343:
1338:
1312:
1250:
1191:
1143:
1101:
1096:
1066:
1061:
1036:
1031:
925:Proper elements
888:
883:
882:
856:
855:
851:
825:
824:
820:
813:
803:Springer-Verlag
794:
793:
789:
760:
759:
748:
720:
719:
710:
701:
699:
691:
690:
683:
646:
645:
634:
624:
622:
609:
608:
597:
589:
585:
580:
553:rotation period
538:X-type asteroid
536:and a metallic
534:C-type asteroid
501:
484:
476:
450:
448:
445:
425:
412:
410:
407:
395:
381:
379:
378:
356:
322:
310:
288:
273:
261:
248:
226:
224:Semi-major axis
185:Observation arc
147:
135:
121:
88:
84:
73:
59:5 November 1872
34:
17:
12:
11:
5:
1398:
1396:
1388:
1387:
1382:
1377:
1372:
1367:
1362:
1357:
1347:
1346:
1340:
1339:
1337:
1336:
1331:
1326:
1320:
1318:
1314:
1313:
1311:
1310:
1305:
1300:
1298:Near-parabolic
1295:
1290:
1285:
1280:
1275:
1270:
1264:
1262:
1256:
1255:
1252:
1251:
1249:
1248:
1247:
1246:
1244:Scattered disc
1241:
1236:
1231:
1221:
1216:
1215:
1214:
1212:Neptune trojan
1209:
1201:
1199:
1193:
1192:
1190:
1189:
1187:Spectral types
1184:
1179:
1177:Jupiter trojan
1174:
1169:
1164:
1159:
1153:
1151:
1145:
1144:
1142:
1141:
1136:
1131:
1126:
1121:
1115:
1109:
1103:
1102:
1097:
1095:
1094:
1087:
1080:
1072:
1063:
1062:
1060:
1059:
1054:
1047:
1041:
1038:
1037:
1032:
1030:
1029:
1022:
1015:
1007:
1001:
1000:
999:
998:
956:Close approach
937:
936:
935:
887:
886:External links
884:
881:
880:
849:
818:
811:
805:, p. 27,
787:
769:(1): 126–151,
746:
740:10.1086/340960
708:
681:
632:
595:
582:
581:
579:
576:
510:
509:
506:
505:
502:
494:
491:
490:
477:
472:
469:
468:
462:
456:
455:
446:
441:
438:
437:
432:(0.53328
426:
421:
418:
417:
415:1.68 g/cm
408:
402:
399:
398:
393:
387:
386:
375:
369:
368:
362:
361:
358:
354:
349:
348:
345:
338:
337:
334:
327:
326:
323:
318:
315:
314:
311:
306:
303:
302:
299:
293:
292:
289:
284:
281:
280:
274:
269:
266:
265:
262:
256:
253:
252:
249:
244:
241:
240:
237:
231:
230:
227:
222:
219:
218:
215:
209:
208:
197:
191:
190:
187:
181:
180:
173:
172:
167:31 July 2016 (
161:
160:
154:
153:
148:
143:
140:
139:
136:
131:
128:
127:
122:
119:
116:
115:
82:
78:
77:
74:
69:
66:
65:
61:
60:
57:
53:
52:
47:
41:
40:
36:
35:
32:
15:
13:
10:
9:
6:
4:
3:
2:
1397:
1386:
1383:
1381:
1378:
1376:
1373:
1371:
1368:
1366:
1363:
1361:
1358:
1356:
1353:
1352:
1350:
1335:
1332:
1330:
1327:
1325:
1322:
1321:
1319:
1315:
1309:
1306:
1304:
1301:
1299:
1296:
1294:
1291:
1289:
1286:
1284:
1281:
1279:
1276:
1274:
1271:
1269:
1266:
1265:
1263:
1261:
1257:
1245:
1242:
1240:
1237:
1235:
1232:
1230:
1227:
1226:
1225:
1222:
1220:
1217:
1213:
1210:
1208:
1205:
1204:
1203:
1202:
1200:
1198:
1194:
1188:
1185:
1183:
1180:
1178:
1175:
1173:
1170:
1168:
1167:Asteroid belt
1165:
1163:
1162:Aten asteroid
1160:
1158:
1155:
1154:
1152:
1150:
1146:
1140:
1137:
1135:
1132:
1130:
1127:
1125:
1122:
1120:
1117:
1116:
1113:
1110:
1108:
1107:Minor planets
1104:
1100:
1093:
1088:
1086:
1081:
1079:
1074:
1073:
1070:
1058:
1055:
1053:
1052:
1048:
1046:
1043:
1042:
1039:
1035:
1028:
1023:
1021:
1016:
1014:
1009:
1008:
1005:
997:
993:
989:
985:
981:
980:Orbit diagram
977:
973:
969:
965:
961:
957:
954:
951:
947:
946:
941:
938:
934:
930:
926:
922:
918:
914:
910:
906:
902:
899:
898:
897:
893:
890:
889:
885:
876:
872:
868:
864:
860:
853:
850:
845:
841:
837:
833:
829:
822:
819:
814:
808:
804:
800:
799:
791:
788:
784:
780:
776:
772:
768:
764:
757:
755:
753:
751:
747:
741:
736:
732:
728:
724:
717:
715:
713:
709:
697:
696:
688:
686:
682:
676:
672:
668:
664:
659:
654:
650:
643:
641:
639:
637:
633:
621:
617:
613:
612:"127 Johanna"
606:
604:
602:
600:
596:
593:
587:
584:
577:
575:
573:
569:
564:
560:
558:
554:
550:
546:
541:
539:
535:
531:
527:
523:
520:
516:
507:
503:
500:
499:
492:
488:
482:
478:
475:
474:Spectral type
470:
467:
463:
461:
457:
447:
444:
439:
435:
431:
428:12.7988
427:
424:
419:
409:
406:
400:
394:
392:
388:
376:
374:
370:
367:
363:
359:
357:
350:
346:
344:
341:Jupiter
339:
335:
333:
328:
324:
321:
316:
312:
309:
304:
300:
298:
294:
290:
287:
282:
279:
275:
272:
267:
263:
260:
259:orbital speed
254:
250:
247:
242:
238:
236:
232:
228:
225:
220:
216:
214:
210:
206:
203:(439.95
202:
198:
196:
192:
188:
186:
182:
178:
174:
170:
166:
162:
159:
155:
152:
149:
146:
141:
137:
134:
129:
126:
123:
117:
112:
83:
81:Pronunciation
79:
76:(127) Johanna
75:
72:
67:
62:
58:
54:
51:
48:
46:
42:
37:
30:
25:
19:
1334:Space debris
1049:
1045:126 Velleda
991:
983:
975:
967:
959:
943:
928:
920:
917:Orbital info
912:
904:
895:
858:
852:
827:
821:
797:
790:
766:
762:
722:
700:, retrieved
694:
679:See Table 1.
648:
623:, retrieved
615:
591:
586:
565:
561:
542:
514:
513:
497:
384:3.93 km
271:Mean anomaly
235:Eccentricity
64:Designations
18:
1324:Cosmic dust
1288:Long-period
1278:Halley-type
1234:Kuiper belt
1119:Designation
1057:128 Nemesis
1051:127 Johanna
940:127 Johanna
892:127 Johanna
549:light curve
530:Joan of Arc
515:127 Johanna
460:Temperature
330:Earth
297:Inclination
286:Mean motion
125:Joan of Arc
120:Named after
22:127 Johanna
1349:Categories
1329:Meteoroids
1308:Sungrazing
1283:Hyperbolic
1239:Oort cloud
1182:Near-Earth
578:References
373:Dimensions
264:17.92 km/s
213:Perihelion
199:2.94
171:2457600.5)
1219:Damocloid
972:Ephemeris
964:Discovery
901:Ephemeris
658:1203.4336
557:magnitude
519:main-belt
504:8.6, 8.30
151:Main belt
39:Discovery
1303:Periodic
1229:Detached
1149:Asteroid
702:29 March
522:asteroid
257:Average
239:0.067041
195:Aphelion
1268:Extinct
1207:Centaur
942:at the
863:Bibcode
832:Bibcode
771:Bibcode
727:Bibcode
663:Bibcode
405:density
355:Jupiter
325:94.611°
313:31.154°
301:8.2449°
138:A872 VB
1260:Comets
1172:Family
1157:Active
1124:Groups
992:·
990:
984:·
982:
976:·
974:
968:·
966:
960:·
958:
929:·
927:
921:·
919:
913:·
911:
905:·
903:
809:
763:Icarus
625:12 May
481:Tholen
453:0.0039
449:0.0557
380:116.14
276:67.782
1317:Other
1273:Great
994:
986:
978:
970:
962:
931:
923:
915:
907:
653:arXiv
464:~168
403:Mean
360:3.325
165:Epoch
1293:Lost
1134:Moon
1129:List
807:ISBN
704:2013
627:2016
485:Ch (
479:CX (
411:3.75
391:Mass
343:MOID
332:MOID
894:at
871:doi
840:doi
779:doi
767:186
735:doi
671:doi
498:(H)
487:Bus
377:122
1351::
869:,
838:,
777:,
765:,
749:^
733:,
711:^
684:^
669:,
661:,
635:^
618:,
614:,
598:^
540:.
205:Gm
201:AU
169:JD
93:oʊ
90:dʒ
1091:e
1084:t
1077:v
1026:e
1019:t
1012:v
877:.
873::
865::
846:.
842::
834::
815:.
781::
773::
743:.
737::
729::
677:.
673::
665::
655::
629:.
489:)
483:)
466:K
451:±
436:)
434:d
430:h
413:±
382:±
353:T
278:°
207:)
179:0
111:/
108:ə
105:n
102:æ
99:h
96:ˈ
87:/
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