918:
2353:
928:
912:
207:
940:
1024:
1089:'s SPHERE instrument names eight craters 20 to 40 km in diameter, and seven recurring features of unknown nature that remain nameless due to a lack of consistency and their occurrence on the edge of Iris. The names are Greek names of colors, corresponding to the rainbow as the sign of Iris. It is unknown whether these names are under consideration by the
1501:
1015:. Its shape is consistent with an oblate spheroid with a large equatorial excavation, suggesting it is a remnant planetesimal. No collisional family can be associated with Iris, likely because the excavating impact occurred early in the history of the Solar System, and the debris has since dispersed.
36:
1492:
of 85°, so that on much of each hemisphere, the sun does not set during summer, and does not rise during winter. On an airless body this gives rise to very large temperature differences.
150:
2041:
2250:
1077:. But at rare oppositions near perihelion Iris can reach a magnitude of +6.7 (last time on 31 October 2017, reaching a magnitude of +6.9), which is as bright as Ceres ever gets.
1591:
2709:
1670:
Hanuš, J.; Marsset, M.; Vernazza, P.; Viikinkoski, M.; Drouard, A.; Brož, M.; et al. (24 April 2019). "The shape of (7) Iris as evidence of an ancient large impact?".
2170:
Arredondo, Anicia; McAdam, Margaret M.; Honniball, Casey I.; Becker, Tracy M.; Emery, Joshua P.; Rivkin, Andrew S.; Takir, Driss; Thomas, Cristina A. (12 February 2024).
2427:
3004:
2974:
1488:(λ, β) estimated to be (18°, +19°) with a 4° uncertainty (Viikinkoski et al. 2017) or (19°, +26°) with a 3° uncertainty (Hanuš et al. 2019). This gives an
2274:
693:
515:
2984:
2492:
2254:
2702:
1624:κιρρός is variously translated. The OED has 'orange-tawny'. The color coding of the proposers in their crater maps, however, is simply orange.
2420:
374:
2994:
2695:
2453:
2999:
2826:
2154:
1944:
2413:
890:. Her quality of attendant of Hera was particularly appropriate to the circumstances of discovery, as Iris was spotted following
55:
2216:
497:
338:
2758:
393:
265:
2979:
2917:
2485:
2989:
2374:
2743:
2047:, 34th Annual Lunar and Planetary Science Conference, 1 7-21 March 2003, League City, Texas, abstract no.2078 (2003).
1910:
P. Vernazza et al. (2021) VLT/SPHERE imaging survey of the largest main-belt asteroids: Final results and synthesis.
2907:
2897:
1485:
874:. It was Hind's first asteroid discovery and the seventh asteroid to be discovered overall. It was named after the
2902:
2118:
2044:
Surface
Material Analysis of the S-type Asteroids: Removing the Space Weathering Effect from Reflectance Spectrum
1804:
1764:
1730:
2268:
1330:
2738:
2478:
81:
2278:
1422:
1376:
2922:
2806:
2718:
2347:
2123:
2085:
1769:
1735:
778:
718:
548:
522:
508:
488:
462:
446:
384:
294:
254:
236:
2843:
2284:
1536:
1070:
1198:
2748:
2436:
1557:
362:
20:
2470:
1468:
1284:
1238:
1152:
917:
2816:
2515:
2187:
2066:
1863:
1689:
1086:
1044:
409:
276:
41:
2259:
1964:
422:
327:
2335:
2311:
2303:
1986:
2288:
1705:
1679:
1058:
1035:
Iris's bright surface and small distance from the Sun make it the fourth-brightest object in the
1028:
804:
792:
2382:
2327:
2319:
2294:
1936:
1929:
1825:
1888:
Dudziński et al. (2020) Volume uncertainty of (7) Iris shape models from disk-resolved images.
2801:
2753:
2150:
1940:
863:
400:
242:
222:
60:
2131:
1777:
1743:
2927:
2366:
2358:
2195:
2070:
1871:
1697:
1437:
1391:
1345:
1299:
1253:
1213:
1167:
1121:
981:
939:
899:
879:
819:
740:
215:
158:
129:
97:
2398:
2057:
Migliorini, F.; et al. (1997). "(7) Iris: a possible source of ordinary chondrites?".
1023:
927:
911:
206:
2848:
2791:
2776:
2342:
992:
988:. Planetary dynamics also indicates that it should be a significant source of meteorites.
903:
895:
883:
851:
784:
706:
1960:
2191:
1867:
1693:
2863:
2831:
2796:
2560:
2390:
2352:
871:
455:
442:
287:
200:
2968:
2887:
2786:
2781:
2591:
2586:
2502:
2112:
1709:
1036:
1012:
1008:
996:
847:
304:
846:
orbiting the Sun between Mars and
Jupiter. It is the fourth-brightest object in the
2953:
2726:
2631:
2519:
1758:
977:
843:
316:
137:
1701:
2943:
2892:
2853:
2646:
1724:
1524:
1509:
1484:
Iris has a rotational period of 7.14 hours. Iris’ north pole points towards the
973:
759:
435:
35:
2244:
1848:
956:
Iris is an S-type asteroid. The surface is bright and is probably a mixture of
2912:
2858:
2671:
2666:
2641:
2626:
2611:
2581:
1489:
1066:
1000:
985:
586:
228:
2948:
2838:
2687:
2661:
2656:
2651:
2621:
2616:
2606:
2596:
2565:
2555:
965:
839:
504:
484:
246:
143:
1875:
2405:
2016:
1800:
2768:
2636:
2539:
2200:
2171:
1517:
1074:
1048:
969:
597:
2534:
2459:
1523:
In
February 2024, water molecules were discovered on 7 Iris, alongside
1504:
The orbit of 7 Iris compared with the orbits of Earth, Mars and
Jupiter
1062:
1040:
922:
875:
666:
1500:
2601:
2447:
1527:, marking the first time water molecules were detected on asteroids.
1004:
957:
891:
867:
765:
614:
1516:
on 26 May 1995, and later on 25 July 1997. Both observations gave a
1684:
2879:
1022:
938:
477:
350:
943:
Size comparison: the first 10 asteroids profiled against Earth's
1513:
1053:
961:
944:
887:
633:
578:
2691:
2474:
2409:
1222:
1305:
1090:
467:
2089:
1357:
2217:"Water molecules identified on asteroids for the first time"
1615:
Calculated based on parameters calculated by J. Hanuš et al.
1452:
1400:
1311:
1412:
1265:
1262:
1179:
1133:
188:
179:
176:
103:
1455:
1363:
1317:
1271:
1225:
1185:
1139:
1446:
1406:
1351:
1308:
170:
161:
109:
1554:
Flattening derived from the maximum aspect ratio (c/a):
19:
This article is about the asteroid. For other uses, see
2255:(2011 Asteroidal Occultation Results for North America)
1935:(2nd ed.). Boston, MA: Houghton Mifflin. pp.
1828:. Department of Mathematics, University of Pisa, Italy
1985:
Bala, Gavin Jared; Miller, Kirk (18 September 2023).
1560:
1458:
1449:
1443:
1403:
1366:
1360:
1320:
1274:
1268:
1259:
1228:
1219:
1188:
1182:
1173:
1142:
1127:
182:
112:
1409:
1397:
1354:
1314:
1176:
1136:
1130:
173:
167:
106:
2936:
2878:
2815:
2767:
2725:
2574:
2548:
2527:
2510:
1440:
1394:
1348:
1302:
1256:
1216:
1170:
1124:
817:
802:
790:
776:
758:
738:
728:
716:
703:
690:
663:
632:
613:
595:
585:
546:
521:
514:
494:
474:
452:
432:
419:
406:
390:
383:
372:
360:
348:
336:
326:
314:
301:
285:
275:
263:
253:
235:
214:
199:
164:
149:
135:
123:
100:
91:
79:
74:
66:
54:
49:
2111:
1928:
1849:"Models of twenty asteroids from photometric data"
1757:
1723:
1585:
984:, so it may be an important contributor of these
1987:"Unicode request for historical asteroid symbols"
1890:Monthly Notices of the Royal Astronomical Society
1826:"AstDyS-2 Iris Synthetic Proper Orbital Elements"
1073:it marginally outshines the larger though darker
909:Iris's original symbol was a rainbow and a star:
2088:. Jordanian Astronomical Society. Archived from
1927:Donald H. Menzel & Jay M. Pasachoff (1983).
1922:
1920:
1093:. The other 7 features are labeled A through G.
886:, who was a messenger to the gods, especially
2703:
2486:
2421:
8:
1085:A study by Hanus et al. using data from the
28:
1665:
1663:
1661:
1659:
1657:
1655:
1653:
1651:
1649:
854:, meaning that it has a stony composition.
2731:
2710:
2696:
2688:
2493:
2479:
2471:
2428:
2414:
2406:
2351:
862:Iris was discovered on 13 August 1847, by
271:2.387 AU (357.1 million km)
259:1.838 AU (275.0 million km)
34:
2199:
1801:"JPL Small-Body Database Browser: 7 Iris"
1795:
1793:
1791:
1789:
1787:
1683:
1573:
1559:
1499:
1095:
3005:Astronomical objects discovered in 1847
2975:Minor planet object articles (numbered)
2215:Gamillo, Elizabeth (14 February 2024).
2017:"Proposed New Characters: The Pipeline"
1645:
1611:
1609:
1607:
1547:
1027:Star rich field showing asteroid Iris (
541:225 km × 190 km × 190 km
528:268 km × 234 km × 180 km
379:0.85 AU (127 million km)
1931:A Field Guide to the Stars and Planets
27:
2277:. Minor Planet Center. Archived from
2275:"Elements and Ephemeris for (7) Iris"
1906:
1904:
1902:
1900:
1898:
1847:Kaasalainen, M.; et al. (2002).
972:. Its spectrum is similar to that of
339:Longitude of ascending node
7:
2132:participating institution membership
1778:participating institution membership
1744:participating institution membership
2356:
2245:Shape model deduced from lightcurve
2176:O on Nominally Anhydrous Asteroids"
1586:{\displaystyle f=1-{\frac {c}{a}}}
724:7.138843 h (0.2974518 d)
14:
730:Equatorial rotation velocity
535:5 km × 4 km × 6 km
2985:Discoveries by John Russell Hind
2299:AstDyS-2, Asteroids—Dynamic Site
1436:
1390:
1344:
1298:
1252:
1212:
1166:
1120:
1069:at most oppositions. At typical
947:. Iris is fourth from the right.
926:
916:
910:
205:
157:
96:
1061:of +7.8, comparable to that of
1065:, and can easily be seen with
842:asteroid and possible remnant
1:
2180:The Planetary Science Journal
850:. 7 Iris is classified as an
2059:Astronomy & Astrophysics
1912:Astronomy & Astrophysics
1672:Astronomy & Astrophysics
921:. It is in the pipeline for
772: 275 K (+2°C)
2260:"Discovery of Iris", MNRAS
1961:"Bright Minor Planets 2006"
1702:10.1051/0004-6361/201834541
363:Argument of perihelion
3021:
138:Minor planet category
18:
2995:S-type asteroids (Tholen)
2734:
2719:Small Solar System bodies
2511:Mean diameter 900–1000 km
2443:
2172:"Detection of Molecular H
2145:Pearson, Richard (2020).
2119:Oxford English Dictionary
2086:"The Brightest Asteroids"
1805:Jet Propulsion Laboratory
1765:Oxford English Dictionary
1731:Oxford English Dictionary
1101:
829:
288:Orbital period (sidereal)
245:(439.1 million
221:
33:
3000:S-type asteroids (SMASS)
2575:Mean diameter 200–300 km
2549:Mean diameter 300–500 km
2528:Mean diameter 500–600 km
2147:The History of Astronomy
2023:. The Unicode Consortium
1803:(2023-07-08 last obs.).
894:by less than an hour of
805:Absolute magnitude
516:Physical characteristics
16:Large main-belt asteroid
2437:Minor planets navigator
2348:JPL Small-Body Database
2251:2011-Feb-19 Occultation
2124:Oxford University Press
2071:1997A&A...321..652M
1892:, 499: 3, pp. 4545–4560
1770:Oxford University Press
1736:Oxford University Press
719:Synodic rotation period
496:Precession of the
385:Proper orbital elements
351:Time of perihelion
216:Orbital characteristics
2844:Trans-Neptunian object
2312:Observation prediction
1876:10.1006/icar.2002.6907
1633:Or greyish blue-green.
1587:
1537:List of former planets
1520:of about 200 km.
1505:
1097:Named craters on Iris
1032:
995:, Iris ranks fifth in
948:
2247:(M. Kaasalainen 2002)
1588:
1503:
1026:
980:with corrections for
942:
906:equivalent of Hera).
21:Iris (disambiguation)
2980:Background asteroids
2817:Distant minor planet
2505:greater than 200 km)
1558:
1486:ecliptic coordinates
925:17.0 as U+1CEC1 (
694:surface gravity
82:MPC designation
42:Very Large Telescope
2990:Named minor planets
2399:Physical parameters
2192:2024PSJ.....5...37A
2122:(Online ed.).
1965:Minor Planet Center
1868:2002Icar..159..369K
1768:(Online ed.).
1734:(Online ed.).
1694:2018DPS....5040406H
1098:
498:ascending node
67:Discovery date
40:Iris imaged by the
30:
2336:Observational info
2201:10.3847/PSJ/ad18b8
1583:
1508:Iris was observed
1506:
1096:
1033:
949:
858:Discovery and name
793:Apparent magnitude
56:Discovered by
2962:
2961:
2874:
2873:
2759:Meanings of names
2685:
2684:
2501:Large asteroids (
2468:
2467:
2253:(Durech Model) /
2130:(Subscription or
2092:on 13 August 2007
1776:(Subscription or
1742:(Subscription or
1581:
1477:
1476:
833:
832:
225:13 September 2023
61:John Russell Hind
3012:
2732:
2712:
2705:
2698:
2689:
2495:
2488:
2481:
2472:
2430:
2423:
2416:
2407:
2391:Orbital elements
2355:
2282:
2281:on 4 March 2016.
2232:
2231:
2229:
2227:
2212:
2206:
2205:
2203:
2167:
2161:
2160:
2142:
2136:
2135:
2127:
2115:
2108:
2102:
2101:
2099:
2097:
2081:
2075:
2074:
2054:
2048:
2039:
2033:
2032:
2030:
2028:
2012:
2006:
2005:
2003:
2001:
1991:
1982:
1976:
1975:
1973:
1971:
1957:
1951:
1950:
1934:
1924:
1915:
1908:
1893:
1886:
1880:
1879:
1853:
1844:
1838:
1837:
1835:
1833:
1822:
1816:
1815:
1813:
1811:
1797:
1782:
1781:
1773:
1761:
1754:
1748:
1747:
1739:
1727:
1720:
1714:
1713:
1687:
1667:
1634:
1631:
1625:
1622:
1616:
1613:
1602:
1600:
1598:
1593:, where (c/a) =
1592:
1590:
1589:
1584:
1582:
1574:
1552:
1465:
1464:
1461:
1460:
1457:
1454:
1451:
1448:
1445:
1442:
1419:
1418:
1415:
1414:
1411:
1408:
1405:
1402:
1399:
1396:
1373:
1372:
1369:
1368:
1365:
1362:
1359:
1356:
1353:
1350:
1327:
1326:
1323:
1322:
1319:
1316:
1313:
1310:
1307:
1304:
1281:
1280:
1277:
1276:
1273:
1270:
1267:
1264:
1261:
1258:
1235:
1234:
1231:
1230:
1227:
1224:
1221:
1218:
1195:
1194:
1191:
1190:
1187:
1184:
1181:
1178:
1175:
1172:
1149:
1148:
1145:
1144:
1141:
1138:
1135:
1132:
1129:
1126:
1099:
1081:Surface features
993:S-type asteroids
982:space weathering
930:
920:
914:
820:Angular diameter
754:
752:
741:Geometric albedo
686:
684:
678:
676:
659:
657:
653:
648:
646:
642:
628:
626:
623:
609:
607:
576:
574:
568:
566:
560:
558:
542:
538:
536:
529:
503:−46.447128
231: 2453300.5)
209:
195:
194:
191:
190:
185:
184:
181:
178:
175:
172:
169:
166:
163:
119:
118:
115:
114:
111:
108:
105:
102:
38:
31:
3020:
3019:
3015:
3014:
3013:
3011:
3010:
3009:
2965:
2964:
2963:
2958:
2932:
2870:
2811:
2763:
2721:
2716:
2686:
2681:
2570:
2544:
2523:
2506:
2499:
2469:
2464:
2439:
2434:
2328:Proper elements
2273:
2241:
2236:
2235:
2225:
2223:
2214:
2213:
2209:
2175:
2169:
2168:
2164:
2157:
2149:. p. 349.
2144:
2143:
2139:
2129:
2110:
2109:
2105:
2095:
2093:
2083:
2082:
2078:
2056:
2055:
2051:
2042:Y. Ueda et al.
2040:
2036:
2026:
2024:
2014:
2013:
2009:
1999:
1997:
1989:
1984:
1983:
1979:
1969:
1967:
1959:
1958:
1954:
1947:
1926:
1925:
1918:
1909:
1896:
1887:
1883:
1851:
1846:
1845:
1841:
1831:
1829:
1824:
1823:
1819:
1809:
1807:
1799:
1798:
1785:
1775:
1756:
1755:
1751:
1741:
1722:
1721:
1717:
1669:
1668:
1647:
1642:
1637:
1632:
1628:
1623:
1619:
1614:
1605:
1596:
1594:
1556:
1555:
1553:
1549:
1545:
1533:
1498:
1482:
1439:
1435:
1393:
1389:
1347:
1343:
1301:
1297:
1255:
1251:
1215:
1211:
1169:
1165:
1123:
1119:
1083:
1021:
954:
937:
935:Characteristics
915:or more simply
896:right ascension
884:Greek mythology
860:
852:S-type asteroid
825:0.32" to 0.07"
822:
810:
795:
781:
768:
750:
748:
747:
743:
731:
721:
709:
707:escape velocity
696:
682:
680:
679:
674:
672:
669:
655:
651:
649:
644:
640:
638:
624:
621:
619:
605:
603:
600:
572:
570:
569:
564:
562:
561:
556:
554:
551:
540:
539:
534:
532:
530:
527:
500:
483:38.403324
480:
465:
458:
441:97.653672
438:
425:
412:
399:2.3862106
396:
394:semi-major axis
365:
353:
341:
319:
307:
290:
268:
266:Semi-major axis
226:
187:
160:
156:
140:
126:
99:
95:
84:
45:
24:
17:
12:
11:
5:
3018:
3016:
3008:
3007:
3002:
2997:
2992:
2987:
2982:
2977:
2967:
2966:
2960:
2959:
2957:
2956:
2951:
2946:
2940:
2938:
2934:
2933:
2931:
2930:
2925:
2920:
2918:Near-parabolic
2915:
2910:
2905:
2900:
2895:
2890:
2884:
2882:
2876:
2875:
2872:
2871:
2869:
2868:
2867:
2866:
2864:Scattered disc
2861:
2856:
2851:
2841:
2836:
2835:
2834:
2832:Neptune trojan
2829:
2821:
2819:
2813:
2812:
2810:
2809:
2807:Spectral types
2804:
2799:
2797:Jupiter trojan
2794:
2789:
2784:
2779:
2773:
2771:
2765:
2764:
2762:
2761:
2756:
2751:
2746:
2741:
2735:
2729:
2723:
2722:
2717:
2715:
2714:
2707:
2700:
2692:
2683:
2682:
2680:
2679:
2674:
2669:
2664:
2659:
2654:
2649:
2644:
2639:
2634:
2629:
2624:
2619:
2614:
2609:
2604:
2599:
2594:
2589:
2584:
2578:
2576:
2572:
2571:
2569:
2568:
2563:
2558:
2552:
2550:
2546:
2545:
2543:
2542:
2537:
2531:
2529:
2525:
2524:
2514:
2512:
2508:
2507:
2500:
2498:
2497:
2490:
2483:
2475:
2466:
2465:
2463:
2462:
2457:
2450:
2444:
2441:
2440:
2435:
2433:
2432:
2425:
2418:
2410:
2404:
2403:
2402:
2401:
2359:Close approach
2340:
2339:
2338:
2292:
2271:
2266:
2257:
2248:
2240:
2239:External links
2237:
2234:
2233:
2207:
2173:
2162:
2155:
2137:
2103:
2076:
2049:
2034:
2007:
1977:
1952:
1945:
1916:
1894:
1881:
1862:(2): 369–395.
1839:
1817:
1783:
1749:
1715:
1678:(A121): A121.
1644:
1643:
1641:
1638:
1636:
1635:
1626:
1617:
1603:
1580:
1577:
1572:
1569:
1566:
1563:
1546:
1544:
1541:
1540:
1539:
1532:
1529:
1497:
1494:
1481:
1478:
1475:
1474:
1471:
1466:
1433:
1429:
1428:
1425:
1420:
1387:
1383:
1382:
1379:
1374:
1341:
1337:
1336:
1333:
1328:
1295:
1291:
1290:
1287:
1282:
1249:
1245:
1244:
1241:
1236:
1209:
1205:
1204:
1201:
1196:
1163:
1159:
1158:
1155:
1150:
1117:
1113:
1112:
1109:
1106:
1103:
1082:
1079:
1020:
1017:
953:
950:
936:
933:
859:
856:
831:
830:
827:
826:
823:
818:
815:
814:
811:
803:
800:
799:
796:
791:
788:
787:
782:
777:
774:
773:
762:
756:
755:
744:
739:
736:
735:
732:
729:
726:
725:
722:
717:
714:
713:
710:
704:
701:
700:
697:
691:
688:
687:
677:0.74 g/cm
670:
664:
661:
660:
636:
630:
629:
617:
611:
610:
601:
596:
593:
592:
589:
583:
582:
552:
547:
544:
543:
525:
519:
518:
512:
511:
501:
495:
492:
491:
481:
476:Precession of
475:
472:
471:
459:
456:orbital period
453:
450:
449:
439:
433:
430:
429:
426:
420:
417:
416:
413:
407:
404:
403:
397:
391:
388:
387:
381:
380:
377:
370:
369:
366:
361:
358:
357:
354:
349:
346:
345:
342:
337:
334:
333:
330:
324:
323:
320:
315:
312:
311:
308:
302:
299:
298:
291:
286:
283:
282:
279:
273:
272:
269:
264:
261:
260:
257:
251:
250:
239:
233:
232:
219:
218:
212:
211:
203:
197:
196:
153:
147:
146:
141:
136:
133:
132:
127:
124:
121:
120:
93:
89:
88:
85:
80:
77:
76:
72:
71:
70:13 August 1847
68:
64:
63:
58:
52:
51:
47:
46:
39:
15:
13:
10:
9:
6:
4:
3:
2:
3017:
3006:
3003:
3001:
2998:
2996:
2993:
2991:
2988:
2986:
2983:
2981:
2978:
2976:
2973:
2972:
2970:
2955:
2952:
2950:
2947:
2945:
2942:
2941:
2939:
2935:
2929:
2926:
2924:
2921:
2919:
2916:
2914:
2911:
2909:
2906:
2904:
2901:
2899:
2896:
2894:
2891:
2889:
2886:
2885:
2883:
2881:
2877:
2865:
2862:
2860:
2857:
2855:
2852:
2850:
2847:
2846:
2845:
2842:
2840:
2837:
2833:
2830:
2828:
2825:
2824:
2823:
2822:
2820:
2818:
2814:
2808:
2805:
2803:
2800:
2798:
2795:
2793:
2790:
2788:
2787:Asteroid belt
2785:
2783:
2782:Aten asteroid
2780:
2778:
2775:
2774:
2772:
2770:
2766:
2760:
2757:
2755:
2752:
2750:
2747:
2745:
2742:
2740:
2737:
2736:
2733:
2730:
2728:
2727:Minor planets
2724:
2720:
2713:
2708:
2706:
2701:
2699:
2694:
2693:
2690:
2678:
2675:
2673:
2670:
2668:
2665:
2663:
2660:
2658:
2655:
2653:
2650:
2648:
2645:
2643:
2640:
2638:
2635:
2633:
2630:
2628:
2625:
2623:
2620:
2618:
2615:
2613:
2610:
2608:
2605:
2603:
2600:
2598:
2595:
2593:
2590:
2588:
2585:
2583:
2580:
2579:
2577:
2573:
2567:
2564:
2562:
2559:
2557:
2554:
2553:
2551:
2547:
2541:
2538:
2536:
2533:
2532:
2530:
2526:
2521:
2517:
2513:
2509:
2504:
2503:mean diameter
2496:
2491:
2489:
2484:
2482:
2477:
2476:
2473:
2461:
2458:
2456:
2455:
2451:
2449:
2446:
2445:
2442:
2438:
2431:
2426:
2424:
2419:
2417:
2412:
2411:
2408:
2400:
2396:
2392:
2388:
2384:
2383:Orbit diagram
2380:
2376:
2372:
2368:
2364:
2360:
2357:
2354:
2350:
2349:
2344:
2341:
2337:
2333:
2329:
2325:
2321:
2317:
2313:
2309:
2305:
2302:
2301:
2300:
2296:
2293:
2290:
2287:from Sun and
2286:
2280:
2276:
2272:
2270:
2269:JPL Ephemeris
2267:
2265:
2263:
2258:
2256:
2252:
2249:
2246:
2243:
2242:
2238:
2222:
2218:
2211:
2208:
2202:
2197:
2193:
2189:
2185:
2181:
2177:
2166:
2163:
2158:
2156:9780244866501
2152:
2148:
2141:
2138:
2133:
2125:
2121:
2120:
2114:
2107:
2104:
2091:
2087:
2084:Odeh, Moh'd.
2080:
2077:
2072:
2068:
2064:
2060:
2053:
2050:
2046:
2045:
2038:
2035:
2022:
2018:
2011:
2008:
1995:
1988:
1981:
1978:
1966:
1962:
1956:
1953:
1948:
1946:0-395-34835-8
1942:
1938:
1933:
1932:
1923:
1921:
1917:
1913:
1907:
1905:
1903:
1901:
1899:
1895:
1891:
1885:
1882:
1877:
1873:
1869:
1865:
1861:
1857:
1850:
1843:
1840:
1827:
1821:
1818:
1806:
1802:
1796:
1794:
1792:
1790:
1788:
1784:
1779:
1771:
1767:
1766:
1760:
1753:
1750:
1745:
1737:
1733:
1732:
1726:
1719:
1716:
1711:
1707:
1703:
1699:
1695:
1691:
1686:
1681:
1677:
1673:
1666:
1664:
1662:
1660:
1658:
1656:
1654:
1652:
1650:
1646:
1639:
1630:
1627:
1621:
1618:
1612:
1610:
1608:
1604:
1578:
1575:
1570:
1567:
1564:
1561:
1551:
1548:
1542:
1538:
1535:
1534:
1530:
1528:
1526:
1521:
1519:
1515:
1511:
1502:
1495:
1493:
1491:
1487:
1479:
1472:
1470:
1467:
1463:
1434:
1431:
1430:
1426:
1424:
1421:
1417:
1388:
1385:
1384:
1380:
1378:
1375:
1371:
1342:
1339:
1338:
1334:
1332:
1329:
1325:
1296:
1293:
1292:
1288:
1286:
1283:
1279:
1250:
1247:
1246:
1242:
1240:
1237:
1233:
1210:
1207:
1206:
1202:
1200:
1197:
1193:
1164:
1161:
1160:
1156:
1154:
1151:
1147:
1118:
1115:
1114:
1110:
1107:
1105:Pronunciation
1104:
1100:
1094:
1092:
1088:
1080:
1078:
1076:
1072:
1068:
1064:
1060:
1056:
1055:
1050:
1046:
1042:
1038:
1037:asteroid belt
1030:
1025:
1018:
1016:
1014:
1010:
1006:
1002:
998:
997:mean diameter
994:
989:
987:
983:
979:
978:LL chondrites
975:
971:
967:
963:
959:
951:
946:
941:
934:
932:
929:
924:
919:
913:
907:
905:
901:
897:
893:
889:
885:
881:
877:
873:
869:
865:
857:
855:
853:
849:
848:asteroid belt
845:
841:
837:
828:
824:
821:
816:
812:
809:
808:
801:
797:
794:
789:
786:
783:
780:
779:Spectral type
775:
771:
767:
763:
761:
757:
745:
742:
737:
733:
727:
723:
720:
715:
711:
708:
702:
698:
695:
689:
685:0.3 g/cm
671:
668:
662:
637:
635:
631:
618:
616:
612:
602:
599:
594:
590:
588:
584:
580:
553:
550:
549:Mean diameter
545:
526:
524:
520:
517:
513:
510:
506:
502:
499:
493:
490:
486:
482:
479:
473:
469:
464:
460:
457:
451:
448:
444:
440:
437:
431:
427:
424:
418:
414:
411:
405:
402:
398:
395:
389:
386:
382:
378:
376:
371:
367:
364:
359:
355:
352:
347:
343:
340:
335:
331:
329:
325:
321:
318:
313:
309:
306:
305:orbital speed
300:
296:
292:
289:
284:
280:
278:
274:
270:
267:
262:
258:
256:
252:
248:
244:
240:
238:
234:
230:
224:
220:
217:
213:
208:
204:
202:
198:
193:
154:
152:
148:
145:
142:
139:
134:
131:
128:
122:
117:
94:
92:Pronunciation
90:
86:
83:
78:
73:
69:
65:
62:
59:
57:
53:
48:
43:
37:
32:
26:
22:
2954:Space debris
2676:
2520:dwarf planet
2452:
2394:
2386:
2378:
2370:
2362:
2346:
2331:
2323:
2320:Orbital info
2315:
2307:
2298:
2279:the original
2261:
2224:. Retrieved
2220:
2210:
2183:
2179:
2165:
2146:
2140:
2117:
2106:
2094:. Retrieved
2090:the original
2079:
2062:
2058:
2052:
2043:
2037:
2025:. Retrieved
2020:
2010:
2000:26 September
1998:. Retrieved
1993:
1980:
1968:. Retrieved
1955:
1930:
1911:
1889:
1884:
1859:
1855:
1842:
1830:. Retrieved
1820:
1810:18 September
1808:. Retrieved
1763:
1752:
1729:
1718:
1675:
1671:
1629:
1620:
1550:
1522:
1507:
1496:Observations
1483:
1084:
1052:
1051:. It has a
1034:
990:
955:
908:
861:
844:planetesimal
835:
834:
806:
769:
598:Surface area
507: /
487: /
445: /
410:eccentricity
356:4 April 2025
317:Mean anomaly
277:Eccentricity
210:(historical)
75:Designations
25:
2944:Cosmic dust
2908:Long-period
2898:Halley-type
2854:Kuiper belt
2739:Designation
2113:"cirrhosis"
2021:unicode.org
1994:unicode.org
1525:20 Massalia
1071:oppositions
1057:opposition
968:- and iron-
964:metals and
838:is a large
798:6.7 to 11.4
760:Temperature
705:Equatorial
692:Equatorial
436:mean motion
423:inclination
373:Earth
328:Inclination
241:2.935
125:Named after
2969:Categories
2949:Meteoroids
2928:Sungrazing
2903:Hyperbolic
2859:Oort cloud
2802:Near-Earth
2587:Euphrosyne
2561:Interamnia
2283:(displays
2264:(1847) 299
2134:required.)
2027:6 November
1780:required.)
1746:required.)
1685:1902.09242
1640:References
1490:axial tilt
1067:binoculars
1019:Brightness
1009:Amphitrite
991:Among the
986:meteorites
864:J. R. Hind
712:0.131 km/s
658:10 kg
647:10 kg
587:Flattening
575:10 km
559:10 km
523:Dimensions
478:perihelion
466:(1346.493
428:6.3924857°
310:19.03 km/s
297:(1346.8 d)
255:Perihelion
151:Adjectives
2839:Damocloid
2592:Patientia
2375:Ephemeris
2367:Discovery
2304:Ephemeris
2291:for 2011)
2221:Astronomy
2186:(2): 37.
2015:Unicode.
1996:. Unicode
1832:1 October
1759:"iridian"
1710:119089163
1571:−
1510:occulting
1473:'yellow'
1427:'purple'
1243:'orange'
1059:magnitude
1013:Herculina
970:silicates
966:magnesium
840:main-belt
699:0.08 m/s²
567:5 km
415:0.2125516
144:Main belt
50:Discovery
2923:Periodic
2849:Detached
2769:Asteroid
2632:Bamberga
2226:27 March
1531:See also
1518:diameter
1480:Rotation
1386:Porphyra
1294:Erythros
1157:'green'
1111:Meaning
878:goddess
734:25.4 m/s
627: km
608: km
303:Average
237:Aphelion
155:Iridian
87:(7) Iris
2888:Extinct
2827:Centaur
2672:Fortuna
2667:Eugenia
2647:Camilla
2612:Eunomia
2460:8 Flora
2448:6 Hebe
2345:at the
2188:Bibcode
2096:16 July
2067:Bibcode
2065:: 652.
1914:54, A56
1864:Bibcode
1690:Bibcode
1432:Xanthos
1423:πορφύρα
1381:'grey'
1377:γλαυκός
1340:Glaucos
1331:ἐρυθρός
1289:'blue'
1208:Cirrhos
1203:'gold'
1162:Chrysos
1116:Chloros
1102:Feature
1063:Neptune
1001:Eunomia
952:Geology
923:Unicode
902:is the
876:rainbow
667:density
531:±
461:3.6865
454:Proper
434:Proper
421:Proper
408:Proper
392:Proper
281:0.22977
44:in 2017
2880:Comets
2792:Family
2777:Active
2744:Groups
2662:Egeria
2657:Daphne
2652:Aurora
2642:Ursula
2627:Hektor
2622:Psyche
2617:Thisbe
2607:Cybele
2597:Sylvia
2582:Davida
2566:Europa
2556:Hygiea
2540:Pallas
2454:7 Iris
2395:·
2393:
2387:·
2385:
2379:·
2377:
2371:·
2369:
2363:·
2361:
2343:7 Iris
2332:·
2330:
2324:·
2322:
2316:·
2314:
2308:·
2306:
2295:7 Iris
2153:
1970:21 May
1943:
1856:Icarus
1725:"iris"
1708:
1469:ξανθός
1335:'red'
1285:κύανος
1248:Cyanos
1239:κιρρός
1199:χρῡσός
1153:χλωρός
1075:Pallas
1049:Pallas
1047:, and
1039:after
999:after
958:nickel
892:3 Juno
868:London
836:7 Iris
749:0.2766
650:(13.75
615:Volume
571:199.83
505:arcsec
485:arcsec
368:145.4°
344:259.5°
332:5.519°
322:207.9°
201:Symbol
29:7 Iris
2937:Other
2893:Great
2637:Doris
2535:Vesta
2516:Ceres
2397:
2389:
2381:
2373:
2365:
2334:
2326:
2318:
2310:
2289:V mag
2285:Elong
2128:
1990:(PDF)
1852:(PDF)
1774:
1740:
1706:S2CID
1680:arXiv
1543:Notes
1108:Greek
1045:Ceres
1041:Vesta
1031:10.1)
1029:apmag
904:Roman
866:from
764:~171
753:0.030
746:0.279
665:Mean
639:(13.5
293:3.69
223:Epoch
2913:Lost
2754:Moon
2749:List
2677:Iris
2602:Juno
2228:2024
2151:ISBN
2098:2007
2029:2023
2002:2023
1972:2008
1941:ISBN
1834:2011
1812:2023
1599:0.07
1595:0.58
1514:star
1054:mean
1011:and
1005:Juno
976:and
962:iron
945:Moon
900:Juno
888:Hera
880:Iris
813:5.64
770:max:
673:3.26
654:1.3)
643:2.3)
634:Mass
591:0.42
579:IRAS
375:MOID
130:Īris
2518:(a
2297:at
2196:doi
2063:321
1937:391
1872:doi
1860:159
1698:doi
1676:624
1401:ɔːr
1091:IAU
1087:VLT
931:).
882:in
807:(H)
681:2.7
625:500
622:153
606:460
604:538
563:214
555:199
443:deg
2971::
2219:.
2194:.
2182:.
2178:.
2116:.
2061:.
2019:.
1992:.
1963:.
1939:.
1919:^
1897:^
1870:.
1858:.
1854:.
1786:^
1762:.
1728:.
1704:.
1696:.
1688:.
1674:.
1648:^
1606:^
1512:a
1358:ɔː
1306:ɛr
1263:aɪ
1223:ɪr
1180:aɪ
1134:oʊ
1043:,
1007:,
1003:,
872:UK
870:,
620:37
509:yr
489:yr
463:yr
447:yr
401:AU
247:km
243:AU
229:JD
192:-/
189:aɪ
104:aɪ
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