Knowledge (XXG)

161P/Hartley–IRAS

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of 21 years. It fits the classical definition of a Halley-type comet with (20 years <
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This was one of six comets discovered by the infrared space telescope
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C/1680 V1 (Great Comet of 1680, Kirsch's Comet, Newton's Comet)
970: 504: 291:(Perihelion occurs when rdot flips from negative to positive). 2101:
C/1743 X1 (Great Comet of 1744, Comet Klinkenberg-Chéseaux)
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Institut de mécanique céleste et de calcul des éphémérides
500: 3201: 289:"Horizons Batch for 161P/Hartley-IRAS on 2026-Nov-27" 339:"JPL Small-Body Database Browser: 161P/Hartley-IRAS" 315:"Note number : 0132 P/Hartley-IRAS : 161P" 2634: 2348: 2042: 2029: 1956: 1896: 1875: 1759: 1750: 1640: 1437: 999: 988: 934: 784: 763: 705: 598: 542: 413:
Quarterly Journal of the Royal Astronomical Society
161: 153: 143: 130: 120: 107: 97: 87: 77: 70: 58: 53: 45: 29: 24: 3221: 516: 8: 19: 3228: 3214: 2039: 1756: 996: 985: 967: 539: 523: 509: 501: 470: 362:Schmadel, Lutz D. (2007). "(3728) Iras". 224:. OAA Computing and Minor Planet Sections 2186:C/1887 B1 (Great Southern Comet of 1887) 2161:C/1865 B1 (Great Southern Comet of 1865) 2096:C/1729 P1 (Comet of 1729, Comet Sarabat) 3282:Astronomical objects discovered in 1983 2196:C/1910 A1 (Great January Comet of 1910) 209: 18: 2136:C/1843 D1 (Great March Comet of 1843) 7: 3186: 3184: 776:List of comets visited by spacecraft 2221:C/1941 B2 (de Kock-Paraskevopoulos) 3200:. You can help Knowledge (XXG) by 14: 2361:C/1992 J1 (Spacewatch–Rabinowitz) 2141:C/1847 T1 (Miss Mitchell's Comet) 270:. Seiichi Yoshida's Comet Catalog 16:Periodic comet with 21 year orbit 3196:This comet-related article is a 3188: 3165: 3164: 2211:C/1927 X1 (Skjellerup–Maristany) 589: 583: 366:Dictionary of Minor Planet Names 2305:C/1970 K1 (White–Ortiz–Bolelli) 2191:C/1901 G1 (Great Comet of 1901) 2181:C/1882 R1 (Great Comet of 1882) 2156:C/1861 J1 (Great Comet of 1861) 2131:C/1823 Y1 (Great Comet of 1823) 2126:C/1819 N1 (Great Comet of 1819) 2121:C/1811 F1 (Great Comet of 1811) 2116:C/1807 R1 (Great Comet of 1807) 2111:C/1769 P1 (Great Comet of 1769) 2106:C/1760 A1 (Great Comet of 1760) 2075:C/1577 V1 (Great Comet of 1577) 2070:C/1471 Y1 (Great Comet of 1472) 2065:C/1402 D1 (Great Comet of 1402) 2060:C/1264 N1 (Great Comet of 1264) 2055:X/1106 C1 (Great Comet of 1106) 718:Observational history of comets 303:(JPL#60 Soln.date: 2021-Apr-15) 3267:Discoveries by Malcolm Hartley 2340:C/1989 Y1 (Skorichenko–George) 2330:C/1989 W1 (Aarseth-Brewington) 1737:P/2013 R3 (Catalina-PANSTARRS) 459:– Seiichi Yoshida @ aerith.net 409:"1986QJRAS..27..102M Page 102" 384:10.1007/978-3-540-29925-7_3725 266:Seiichi Yoshida (2006-07-16). 1: 2325:C/1983 H1 (IRAS–Araki–Alcock) 807:C/2023 A3 (Tsuchinshan–ATLAS) 313:Patrick Rocher (2005-10-12). 222:"161P/Hartley-IRAS (NK 1184)" 2366:C/1993 Y1 (McNaught–Russell) 2288:C/1969 T1 (Tago-Sato-Kosaka) 1888:D/1993 F2 (Shoemaker–Levy 9) 1797:57P/du Toit–Neujmin–Delporte 1289:57P/du Toit–Neujmin–Delporte 463:161P at Kronk's Cometography 1857:226P/Pigott–LINEAR–Kowalski 1229:45P/Honda–Mrkos–Pajdušáková 1209:41P/Tuttle–Giacobini–Kresák 740:Extraterrestrial atmosphere 3303: 3183: 2246:C/1961 O1 (Wilson-Hubbard) 2226:C/1947 X1 (Southern Comet) 2166:X/1872 X1 (Pogson's Comet) 2151:C/1861 G1 (Comet Thatcher) 771:List of missions to comets 372:Springer Berlin Heidelberg 3160: 2531:C/2013 A1 (Siding Spring) 2476:C/2007 Q3 (Siding Spring) 2176:C/1881 K1 (Comet Tebbutt) 2091:C/1702 H1 (Comet of 1702) 2050:C/-43 K1 (Caesar's Comet) 2016:67P/Churyumov–Gerasimenko 1384:76P/West–Kohoutek–Ikemura 1339:67P/Churyumov–Gerasimenko 984: 966: 916:(Bernardinelli–Bernstein) 581: 538: 473: 343:Jet Propulsion Laboratory 243:"161P/Hartley-IRAS Orbit" 2236:C/1956 R1 (Arend–Roland) 2171:C/1874 H1 (Comet Coggia) 2146:C/1858 L1 (Comet Donati) 1369:73P/Schwassmann–Wachmann 1159:31P/Schwassmann–Wachmann 1149:29P/Schwassmann–Wachmann 822:C/2021 J1 (Maury-Attard) 61:Alternative designations 2711:de Kock–Paraskevopoulos 2566:C/2015 ER61 (PanSTARRS) 1767:11P/Tempel–Swift–LINEAR 1059:11P/Tempel–Swift–LINEAR 907:C/2015 ER61 (PanSTARRS) 750:Small Solar System body 407:Marsden, B. G. (1986). 341:(2005-10-12 last obs). 72:Orbital characteristics 3277:IRAS catalogue objects 2546:C/2013 V5 (Oukaimeden) 2541:C/2013 US10 (Catalina) 2386:C/1998 H1 (Stonehouse) 2283:C/1965 S1 (Ikeya-Seki) 2263:C/1962 C1 (Seki-Lines) 1862:271P/van Houten–Lemmon 1822:107P/Wilson–Harrington 1817:97P/Metcalf–Brewington 1787:54P/de Vico–Swift–NEAT 1663:4015 Wilson–Harrington 1507:147P/Kushida–Muramatsu 1472:107P/Wilson–Harrington 1462:97P/Metcalf–Brewington 1274:54P/de Vico–Swift–NEAT 3064:Spacewatch–Rabinowitz 2626:C/2023 P1 (Nishimura) 2576:C/2017 K2 (PanSTARRS) 2556:C/2014 Q1 (PanSTARRS) 2521:C/2012 K1 (PANSTARRS) 2501:C/2011 L4 (PANSTARRS) 2446:C/2006 A1 (Pojmański) 2436:C/2004 F4 (Bradfield) 2416:C/2001 OG108 (LONEOS) 2381:C/1997 L1 (Zhu–Balam) 2376:C/1996 B2 (Hyakutake) 2371:C/1995 O1 (Hale–Bopp) 2206:C/1911 S3 (Beljawsky) 1852:206P/Barnard–Boattini 1374:74P/Smirnova–Chernykh 1284:56P/Slaughter–Burnham 1179:35P/Herschel–Rigollet 926:C/2014 Q1 (PanSTARRS) 887:C/2017 K2 (PanSTARRS) 817:C/2021 O3 (PanSTARRS) 792:C/2023 P1 (Nishimura) 3044:Skjellerup–Maristany 2581:1I/2017 U1 ʻOumuamua 2491:C/2009 R1 (McNaught) 2481:C/2007 W1 (Boattini) 2456:C/2006 P1 (McNaught) 2441:C/2004 Q2 (Machholz) 2396:C/1999 F1 (Catalina) 2310:C/1973 E1 (Kohoutek) 1980:26P/Grigg–Skjellerup 1968:21P/Giacobini–Zinner 1807:72P/Denning–Fujikawa 1364:72P/Denning–Fujikawa 1264:52P/Harrington–Abell 1239:47P/Ashbrook–Jackson 1134:26P/Grigg–Skjellerup 1109:21P/Giacobini–Zinner 3272:Discoveries by IRAS 3113:White–Ortiz–Bolelli 2616:C/2021 A1 (Leonard) 2606:C/2020 F3 (NEOWISE) 2586:C/2018 Y1 (Iwamoto) 2571:C/2015 V2 (Johnson) 2561:C/2014 Q2 (Lovejoy) 2551:C/2014 E2 (Jacques) 2536:C/2013 R1 (Lovejoy) 2506:C/2011 W3 (Lovejoy) 2486:C/2009 F6 (Yi–SWAN) 2461:C/2007 E2 (Lovejoy) 2406:C/2000 WM1 (LINEAR) 2300:C/1969 Y1 (Bennett) 2273:C/1963 R1 (Pereyra) 2258:C/1961 R1 (Humason) 2231:C/1948 V1 (Eclipse) 1742:(300163) 2006 VW139 1612:332P/Ikeya–Murakami 1517:156P/Russell–LINEAR 1399:79P/du Toit–Hartley 1309:61P/Shajn–Schaldach 1294:58P/Jackson–Neujmin 1219:43P/Wolf–Harrington 1119:23P/Brorsen–Metcalf 921:C/2014 Q2 (Lovejoy) 897:C/2015 V2 (Johnson) 892:C/2016 U1 (NEOWISE) 872:C/2018 Y1 (Iwamoto) 842:C/2020 F3 (NEOWISE) 827:C/2021 A1 (Leonard) 425:1986QJRAS..27..102M 268:"161P/Hartley-IRAS" 247:Minor Planet Center 46:Discovery date 21: 3252:Halley-type comets 3049:Skorichenko–George 2644:Aarseth-Brewington 2596:C/2019 U6 (Lemmon) 2516:C/2012 F6 (Lemmon) 2496:C/2010 X1 (Elenin) 2466:C/2007 F1 (LONEOS) 2426:C/2002 T7 (LINEAR) 2411:C/2001 A2 (LINEAR) 2401:C/1999 S4 (LINEAR) 2335:C/1989 X1 (Austin) 2320:C/1980 E1 (Bowell) 2201:C/1911 O1 (Brooks) 1904:D/1770 L1 (Lexell) 1812:80P/Peters–Hartley 1527:162P/Siding Spring 1404:80P/Peters–Hartley 1269:53P/Van Biesbroeck 1194:38P/Stephan–Oterma 902:C/2015 G2 (MASTER) 877:C/2018 C2 (Lemmon) 867:P/2019 LD2 (ATLAS) 857:C/2019 U6 (Lemmon) 837:C/2020 F5 (MASTER) 797:C/2023 H2 (Lemmon) 494:162P/Siding Spring 488:161P/Hartley–IRAS 452:Horizons Ephemeris 450:from JPL (Java) / 448:Orbital simulation 31:Discovered by 3257:Near-Earth comets 3209: 3208: 3178: 3177: 3156: 3155: 3152: 3151: 3148: 3147: 2763:IRAS–Araki–Alcock 2601:C/2019 Y4 (ATLAS) 2471:C/2007 N3 (Lulin) 2278:C/1964 N1 (Ikeya) 2268:C/1963 A1 (Ikeya) 2241:C/1957 P1 (Mrkos) 2216:C/1931 P1 (Ryves) 2025: 2024: 1952: 1951: 1914:18D/Perrine–Mrkos 1792:55P/Tempel–Tuttle 1669:7968 Elst–Pizarro 1587:273P/Pons–Gambart 1532:168P/Hergenrother 1522:161P/Hartley–IRAS 1482:109P/Swift–Tuttle 1324:64P/Swift–Gehrels 1279:55P/Tempel–Tuttle 1094:18D/Perrine–Mrkos 962: 961: 949:Comets in fiction 852:C/2019 Y1 (ATLAS) 847:C/2019 Y4 (ATLAS) 802:C/2023 E1 (ATLAS) 728:Comet discoverers 499: 498: 457:161P/Hartley-IRAS 393:978-3-540-00238-3 193:< 200 years). 176:161P/Hartley–IRAS 173: 172: 66:1984 III; 2004 V2 20:161P/Hartley-IRAS 3294: 3230: 3223: 3216: 3192: 3185: 3168: 3167: 3126: 3104: 3096:Tago-Sato-Kosaka 2923:McNaught–Russell 2611:C/2020 F8 (SWAN) 2526:C/2012 S1 (ISON) 2511:C/2012 E2 (SWAN) 2451:C/2006 M4 (SWAN) 2431:C/2002 V1 (NEAT) 2421:C/2001 Q4 (NEAT) 2391:C/1998 J1 (SOHO) 2356:C/1990 K1 (Levy) 2315:C/1975 V1 (West) 2296: 2254: 2040: 1757: 1512:153P/Ikeya–Zhang 1249:49P/Arend–Rigaux 1039:7P/Pons–Winnecke 997: 986: 968: 944:Antimatter comet 832:C/2020 F8 (SWAN) 713:Naming of comets 593: 587: 540: 525: 518: 511: 502: 471: 435: 434: 432: 431: 404: 398: 397: 369: 359: 353: 352: 350: 349: 335: 329: 328: 326: 325: 310: 304: 302: 300: 299: 285: 279: 278: 276: 275: 263: 257: 256: 254: 253: 239: 233: 232: 230: 229: 214: 169:2026 December 18 49:November 4, 1983 22: 3302: 3301: 3297: 3296: 3295: 3293: 3292: 3291: 3262:Numbered comets 3247:Periodic comets 3237: 3236: 3235: 3234: 3181: 3179: 3174: 3144: 3120: 3098: 2636: 2630: 2621:C/2022 E3 (ZTF) 2344: 2290: 2248: 2034: 2032: 2021: 1959: 1948: 1892: 1871: 1746: 1643: 1636: 1439: 1433: 1314:62P/Tsuchinshan 1304:60P/Tsuchinshan 1299:59P/Kearns–Kwee 1064:12P/Pons–Brooks 1001: 991: 980: 973:Lists of comets 958: 936: 930: 915: 812:C/2022 E3 (ZTF) 780: 759: 701: 594: 588: 579: 534: 529: 492: 482: 475:Numbered comets 468: 444: 439: 438: 429: 427: 406: 405: 401: 394: 361: 360: 356: 347: 345: 337: 336: 332: 323: 321: 312: 311: 307: 297: 295: 287: 286: 282: 273: 271: 265: 264: 260: 251: 249: 241: 240: 236: 227: 225: 216: 215: 211: 206: 168: 166: 162:Next perihelion 154:Last perihelion 109:Semi-major axis 63: 38: 36:Malcolm Hartley 17: 12: 11: 5: 3300: 3298: 3290: 3289: 3284: 3279: 3274: 3269: 3264: 3259: 3254: 3249: 3239: 3238: 3233: 3232: 3225: 3218: 3210: 3207: 3206: 3193: 3176: 3175: 3173: 3172: 3161: 3158: 3157: 3154: 3153: 3150: 3149: 3146: 3145: 3143: 3142: 3137: 3132: 3127: 3118:Wilson–Hubbard 3115: 3110: 3105: 3093: 3092: 3091: 3086: 3081: 3071: 3066: 3061: 3056: 3051: 3046: 3041: 3040: 3039: 3034: 3024: 3019: 3014: 3009: 3004: 3003: 3002: 2997: 2992: 2987: 2985:311P/PanSTARRS 2982: 2977: 2967: 2962: 2957: 2952: 2947: 2946: 2945: 2940: 2930: 2925: 2920: 2919: 2918: 2913: 2903: 2898: 2893: 2892: 2891: 2886: 2881: 2876: 2866: 2865: 2864: 2859: 2849: 2848: 2847: 2842: 2837: 2832: 2822: 2817: 2812: 2811: 2810: 2805: 2800: 2790: 2785: 2780: 2775: 2770: 2765: 2760: 2755: 2754: 2753: 2748: 2738: 2733: 2728: 2723: 2718: 2713: 2708: 2707: 2706: 2701: 2691: 2686: 2681: 2676: 2671: 2666: 2661: 2656: 2651: 2646: 2640: 2638: 2632: 2631: 2629: 2628: 2623: 2618: 2613: 2608: 2603: 2598: 2593: 2588: 2583: 2578: 2573: 2568: 2563: 2558: 2553: 2548: 2543: 2538: 2533: 2528: 2523: 2518: 2513: 2508: 2503: 2498: 2493: 2488: 2483: 2478: 2473: 2468: 2463: 2458: 2453: 2448: 2443: 2438: 2433: 2428: 2423: 2418: 2413: 2408: 2403: 2398: 2393: 2388: 2383: 2378: 2373: 2368: 2363: 2358: 2352: 2350: 2346: 2345: 2343: 2342: 2337: 2332: 2327: 2322: 2317: 2312: 2307: 2302: 2297: 2285: 2280: 2275: 2270: 2265: 2260: 2255: 2243: 2238: 2233: 2228: 2223: 2218: 2213: 2208: 2203: 2198: 2193: 2188: 2183: 2178: 2173: 2168: 2163: 2158: 2153: 2148: 2143: 2138: 2133: 2128: 2123: 2118: 2113: 2108: 2103: 2098: 2093: 2088: 2082: 2077: 2072: 2067: 2062: 2057: 2052: 2046: 2044: 2037: 2031:Near-Parabolic 2027: 2026: 2023: 2022: 2020: 2019: 2013: 2007: 2001: 1995: 1989: 1983: 1977: 1971: 1964: 1962: 1954: 1953: 1950: 1949: 1947: 1946: 1941: 1936: 1931: 1926: 1921: 1916: 1911: 1906: 1900: 1898: 1894: 1893: 1891: 1890: 1885: 1879: 1877: 1873: 1872: 1870: 1869: 1864: 1859: 1854: 1849: 1847:205P/Giacobini 1844: 1839: 1834: 1829: 1824: 1819: 1814: 1809: 1804: 1799: 1794: 1789: 1784: 1779: 1774: 1769: 1763: 1761: 1754: 1748: 1747: 1745: 1744: 1739: 1734: 1732:358P/PANSTARRS 1729: 1724: 1719: 1714: 1712:311P/PanSTARRS 1709: 1704: 1699: 1693: 1690:60558 Echeclus 1687: 1682: 1677: 1672: 1666: 1660: 1654: 1648: 1646: 1638: 1637: 1635: 1634: 1632:460P/PanSTARRS 1629: 1624: 1619: 1614: 1609: 1604: 1599: 1597:311P/PanSTARRS 1594: 1589: 1584: 1579: 1574: 1569: 1564: 1559: 1554: 1552:205P/Giacobini 1549: 1544: 1539: 1534: 1529: 1524: 1519: 1514: 1509: 1504: 1499: 1494: 1489: 1484: 1479: 1474: 1469: 1464: 1459: 1454: 1449: 1443: 1441: 1435: 1434: 1432: 1431: 1426: 1421: 1416: 1411: 1406: 1401: 1396: 1391: 1386: 1381: 1376: 1371: 1366: 1361: 1356: 1351: 1346: 1341: 1336: 1331: 1326: 1321: 1316: 1311: 1306: 1301: 1296: 1291: 1286: 1281: 1276: 1271: 1266: 1261: 1259:51P/Harrington 1256: 1251: 1246: 1241: 1236: 1231: 1226: 1221: 1216: 1211: 1206: 1201: 1196: 1191: 1186: 1181: 1176: 1171: 1166: 1164:32P/Comas Solà 1161: 1156: 1151: 1146: 1141: 1136: 1131: 1126: 1124:24P/Schaumasse 1121: 1116: 1111: 1106: 1101: 1096: 1091: 1086: 1081: 1076: 1071: 1066: 1061: 1056: 1051: 1046: 1041: 1036: 1031: 1026: 1021: 1016: 1011: 1005: 1003: 994: 982: 981: 971: 964: 963: 960: 959: 957: 956: 954:Comet vintages 951: 946: 940: 938: 932: 931: 929: 928: 923: 918: 913: 909: 904: 899: 894: 889: 884: 879: 874: 869: 864: 859: 854: 849: 844: 839: 834: 829: 824: 819: 814: 809: 804: 799: 794: 788: 786: 782: 781: 779: 778: 773: 767: 765: 761: 760: 758: 757: 752: 747: 742: 737: 736: 735: 725: 720: 715: 709: 707: 703: 702: 700: 699: 694: 689: 684: 674: 669: 668: 667: 662: 657: 655:Near-parabolic 647: 646: 645: 640: 635: 633:Jupiter-family 630: 625: 620: 615: 604: 602: 596: 595: 582: 580: 578: 577: 572: 567: 562: 557: 552: 546: 544: 536: 535: 530: 528: 527: 520: 513: 505: 497: 496: 489: 486: 478: 477: 466: 465: 460: 454: 443: 442:External links 440: 437: 436: 399: 392: 354: 330: 305: 280: 258: 234: 220:(2005-06-21). 218:Syuichi Nakano 208: 207: 205: 202: 187:orbital period 171: 170: 163: 159: 158: 155: 151: 150: 147: 141: 140: 134: 132:Orbital period 128: 127: 124: 118: 117: 111: 105: 104: 101: 95: 94: 91: 85: 84: 81: 75: 74: 68: 67: 64: 59: 56: 55: 51: 50: 47: 43: 42: 33: 27: 26: 15: 13: 10: 9: 6: 4: 3: 2: 3299: 3288: 3285: 3283: 3280: 3278: 3275: 3273: 3270: 3268: 3265: 3263: 3260: 3258: 3255: 3253: 3250: 3248: 3245: 3244: 3242: 3231: 3226: 3224: 3219: 3217: 3212: 3211: 3205: 3203: 3199: 3194: 3191: 3187: 3182: 3171: 3163: 3162: 3159: 3141: 3138: 3136: 3133: 3131: 3128: 3124: 3119: 3116: 3114: 3111: 3109: 3106: 3102: 3097: 3094: 3090: 3087: 3085: 3082: 3080: 3077: 3076: 3075: 3072: 3070: 3067: 3065: 3062: 3060: 3057: 3055: 3052: 3050: 3047: 3045: 3042: 3038: 3035: 3033: 3030: 3029: 3028: 3027:Siding Spring 3025: 3023: 3020: 3018: 3015: 3013: 3010: 3008: 3005: 3001: 2998: 2996: 2993: 2991: 2988: 2986: 2983: 2981: 2978: 2976: 2973: 2972: 2971: 2968: 2966: 2963: 2961: 2958: 2956: 2953: 2951: 2948: 2944: 2941: 2939: 2936: 2935: 2934: 2931: 2929: 2926: 2924: 2921: 2917: 2914: 2912: 2909: 2908: 2907: 2904: 2902: 2899: 2897: 2894: 2890: 2887: 2885: 2882: 2880: 2877: 2875: 2872: 2871: 2870: 2867: 2863: 2860: 2858: 2855: 2854: 2853: 2850: 2846: 2843: 2841: 2838: 2836: 2833: 2831: 2828: 2827: 2826: 2823: 2821: 2818: 2816: 2813: 2809: 2806: 2804: 2801: 2799: 2796: 2795: 2794: 2791: 2789: 2786: 2784: 2781: 2779: 2776: 2774: 2771: 2769: 2766: 2764: 2761: 2759: 2756: 2752: 2749: 2747: 2744: 2743: 2742: 2739: 2737: 2734: 2732: 2729: 2727: 2724: 2722: 2719: 2717: 2714: 2712: 2709: 2705: 2702: 2700: 2697: 2696: 2695: 2692: 2690: 2687: 2685: 2682: 2680: 2677: 2675: 2672: 2670: 2667: 2665: 2662: 2660: 2657: 2655: 2652: 2650: 2647: 2645: 2642: 2641: 2639: 2633: 2627: 2624: 2622: 2619: 2617: 2614: 2612: 2609: 2607: 2604: 2602: 2599: 2597: 2594: 2592: 2589: 2587: 2584: 2582: 2579: 2577: 2574: 2572: 2569: 2567: 2564: 2562: 2559: 2557: 2554: 2552: 2549: 2547: 2544: 2542: 2539: 2537: 2534: 2532: 2529: 2527: 2524: 2522: 2519: 2517: 2514: 2512: 2509: 2507: 2504: 2502: 2499: 2497: 2494: 2492: 2489: 2487: 2484: 2482: 2479: 2477: 2474: 2472: 2469: 2467: 2464: 2462: 2459: 2457: 2454: 2452: 2449: 2447: 2444: 2442: 2439: 2437: 2434: 2432: 2429: 2427: 2424: 2422: 2419: 2417: 2414: 2412: 2409: 2407: 2404: 2402: 2399: 2397: 2394: 2392: 2389: 2387: 2384: 2382: 2379: 2377: 2374: 2372: 2369: 2367: 2364: 2362: 2359: 2357: 2354: 2353: 2351: 2347: 2341: 2338: 2336: 2333: 2331: 2328: 2326: 2323: 2321: 2318: 2316: 2313: 2311: 2308: 2306: 2303: 2301: 2298: 2294: 2289: 2286: 2284: 2281: 2279: 2276: 2274: 2271: 2269: 2266: 2264: 2261: 2259: 2256: 2252: 2247: 2244: 2242: 2239: 2237: 2234: 2232: 2229: 2227: 2224: 2222: 2219: 2217: 2214: 2212: 2209: 2207: 2204: 2202: 2199: 2197: 2194: 2192: 2189: 2187: 2184: 2182: 2179: 2177: 2174: 2172: 2169: 2167: 2164: 2162: 2159: 2157: 2154: 2152: 2149: 2147: 2144: 2142: 2139: 2137: 2134: 2132: 2129: 2127: 2124: 2122: 2119: 2117: 2114: 2112: 2109: 2107: 2104: 2102: 2099: 2097: 2094: 2092: 2089: 2086: 2083: 2081: 2078: 2076: 2073: 2071: 2068: 2066: 2063: 2061: 2058: 2056: 2053: 2051: 2048: 2047: 2045: 2041: 2038: 2036: 2028: 2017: 2014: 2011: 2008: 2005: 2002: 1999: 1996: 1993: 1990: 1987: 1984: 1981: 1978: 1975: 1972: 1969: 1966: 1965: 1963: 1961: 1955: 1945: 1942: 1940: 1937: 1935: 1932: 1930: 1927: 1925: 1922: 1920: 1917: 1915: 1912: 1910: 1907: 1905: 1902: 1901: 1899: 1895: 1889: 1886: 1884: 1881: 1880: 1878: 1874: 1868: 1867:289P/Blanpain 1865: 1863: 1860: 1858: 1855: 1853: 1850: 1848: 1845: 1843: 1840: 1838: 1835: 1833: 1830: 1828: 1827:113P/Spitaler 1825: 1823: 1820: 1818: 1815: 1813: 1810: 1808: 1805: 1803: 1800: 1798: 1795: 1793: 1790: 1788: 1785: 1783: 1782:27P/Crommelin 1780: 1778: 1775: 1773: 1770: 1768: 1765: 1764: 1762: 1758: 1755: 1753: 1749: 1743: 1740: 1738: 1735: 1733: 1730: 1728: 1725: 1723: 1720: 1718: 1717:324P/La Sagra 1715: 1713: 1710: 1708: 1705: 1703: 1700: 1697: 1696:118401 LINEAR 1694: 1691: 1688: 1686: 1683: 1681: 1678: 1676: 1673: 1670: 1667: 1664: 1661: 1658: 1655: 1653: 1650: 1649: 1647: 1645: 1639: 1633: 1630: 1628: 1625: 1623: 1620: 1618: 1615: 1613: 1610: 1608: 1605: 1603: 1600: 1598: 1595: 1593: 1592:289P/Blanpain 1590: 1588: 1585: 1583: 1580: 1578: 1575: 1573: 1570: 1568: 1565: 1563: 1560: 1558: 1555: 1553: 1550: 1548: 1547:178P/Hug–Bell 1545: 1543: 1540: 1538: 1535: 1533: 1530: 1528: 1525: 1523: 1520: 1518: 1515: 1513: 1510: 1508: 1505: 1503: 1500: 1498: 1497:141P/Machholz 1495: 1493: 1490: 1488: 1485: 1483: 1480: 1478: 1475: 1473: 1470: 1468: 1465: 1463: 1460: 1458: 1455: 1453: 1450: 1448: 1445: 1444: 1442: 1436: 1430: 1427: 1425: 1422: 1420: 1417: 1415: 1412: 1410: 1407: 1405: 1402: 1400: 1397: 1395: 1392: 1390: 1387: 1385: 1382: 1380: 1377: 1375: 1372: 1370: 1367: 1365: 1362: 1360: 1357: 1355: 1352: 1350: 1347: 1345: 1342: 1340: 1337: 1335: 1332: 1330: 1327: 1325: 1322: 1320: 1317: 1315: 1312: 1310: 1307: 1305: 1302: 1300: 1297: 1295: 1292: 1290: 1287: 1285: 1282: 1280: 1277: 1275: 1272: 1270: 1267: 1265: 1262: 1260: 1257: 1255: 1252: 1250: 1247: 1245: 1242: 1240: 1237: 1235: 1232: 1230: 1227: 1225: 1222: 1220: 1217: 1215: 1212: 1210: 1207: 1205: 1202: 1200: 1197: 1195: 1192: 1190: 1187: 1185: 1182: 1180: 1177: 1175: 1172: 1170: 1167: 1165: 1162: 1160: 1157: 1155: 1152: 1150: 1147: 1145: 1142: 1140: 1139:27P/Crommelin 1137: 1135: 1132: 1130: 1127: 1125: 1122: 1120: 1117: 1115: 1112: 1110: 1107: 1105: 1102: 1100: 1097: 1095: 1092: 1090: 1087: 1085: 1082: 1080: 1077: 1075: 1072: 1070: 1067: 1065: 1062: 1060: 1057: 1055: 1052: 1050: 1047: 1045: 1042: 1040: 1037: 1035: 1032: 1030: 1027: 1025: 1022: 1020: 1017: 1015: 1012: 1010: 1007: 1006: 1004: 998: 995: 993: 987: 983: 978: 974: 969: 965: 955: 952: 950: 947: 945: 942: 941: 939: 933: 927: 924: 922: 919: 917: 910: 908: 905: 903: 900: 898: 895: 893: 890: 888: 885: 883: 880: 878: 875: 873: 870: 868: 865: 863: 860: 858: 855: 853: 850: 848: 845: 843: 840: 838: 835: 833: 830: 828: 825: 823: 820: 818: 815: 813: 810: 808: 805: 803: 800: 798: 795: 793: 790: 789: 787: 783: 777: 774: 772: 769: 768: 766: 762: 756: 753: 751: 748: 746: 743: 741: 738: 734: 731: 730: 729: 726: 724: 721: 719: 716: 714: 711: 710: 708: 704: 698: 695: 693: 690: 688: 685: 682: 678: 675: 673: 670: 666: 665:Unknown-orbit 663: 661: 658: 656: 653: 652: 651: 648: 644: 641: 639: 636: 634: 631: 629: 626: 624: 621: 619: 616: 614: 611: 610: 609: 606: 605: 603: 601: 597: 592: 586: 576: 575:Meteor shower 573: 571: 568: 566: 563: 561: 558: 556: 553: 551: 548: 547: 545: 541: 537: 533: 526: 521: 519: 514: 512: 507: 506: 503: 495: 490: 487: 485: 480: 479: 476: 472: 469: 464: 461: 458: 455: 453: 449: 446: 445: 441: 426: 422: 418: 414: 410: 403: 400: 395: 389: 385: 381: 377: 373: 368: 367: 358: 355: 344: 340: 334: 331: 320: 316: 309: 306: 294: 290: 284: 281: 269: 262: 259: 248: 244: 238: 235: 223: 219: 213: 210: 203: 201: 199: 194: 192: 188: 184: 181: 177: 164: 160: 157:June 20, 2005 156: 152: 148: 146: 142: 139: 135: 133: 129: 125: 123: 119: 116: 112: 110: 106: 102: 100: 96: 92: 90: 86: 83:March 6, 2006 82: 80: 76: 73: 69: 65: 62: 57: 52: 48: 44: 41: 37: 34: 32: 28: 23: 3202:expanding it 3195: 3180: 2857:C/2001 OG108 2649:Arend–Roland 2010:103P/Hartley 2000:(2005, 2011) 1986:19P/Borrelly 1934:75D/Kohoutek 1919:20D/Westphal 1842:177P/Barnard 1837:157P/Tritton 1832:122P/de Vico 1707:259P/Garradd 1542:177P/Barnard 1521: 1502:144P/Kushida 1487:122P/de Vico 1477:108P/Ciffréo 1467:103P/Hartley 1457:96P/Machholz 1389:77P/Longmore 1379:75D/Kohoutek 1234:46P/Wirtanen 1224:44P/Reinmuth 1154:30P/Reinmuth 1104:20D/Westphal 1099:19P/Borrelly 697:Interstellar 650:Non-periodic 467: 428:. Retrieved 416: 412: 402: 365: 357: 346:. Retrieved 333: 322:. Retrieved 308: 296:. Retrieved 293:JPL Horizons 283: 272:. Retrieved 261: 250:. Retrieved 237: 226:. Retrieved 212: 195: 175: 174: 167:2026 Nov. 27 165:2026 Oct. 29 122:Eccentricity 54:Designations 3287:Comet stubs 3121: [ 3099: [ 2995:C/2015 ER61 2704:C/2013 US10 2291: [ 2249: [ 1944:85D/Boethin 1939:83D/Russell 1924:25D/Neujmin 1727:354P/LINEAR 1685:167P/CINEOS 1675:165P/LINEAR 1657:2060 Chiron 1652:596 Scheila 1622:354P/LINEAR 1617:333P/LINEAR 1577:252P/LINEAR 1572:249P/LINEAR 1557:209P/LINEAR 1452:92P/Sanguin 1429:85D/Boethin 1419:83D/Russell 1414:82P/Gehrels 1394:78P/Gehrels 1344:68P/Klemola 1334:66P/du Toit 1244:48P/Johnson 1214:42P/Neujmin 1204:40P/Väisälä 1184:36P/Whipple 1144:28P/Neujmin 1129:25D/Neujmin 1034:6P/d'Arrest 937:speculation 935:Culture and 764:Exploration 672:Great Comet 628:Halley-type 623:Long period 484:160P/LINEAR 200:, in 1983. 145:Inclination 3241:Categories 3069:Stonehouse 3022:Seki–Lines 2970:Pan-STARRS 2960:Oukaimeden 2835:C/2000 WM1 2758:Ikeya-Seki 2635:After 1910 2591:2I/Borisov 2349:After 1990 2043:Until 1990 1960:spacecraft 1958:Visited by 1909:5D/Brorsen 1802:69P/Taylor 1777:17P/Holmes 1772:15P/Finlay 1722:331P/Gibbs 1642:Comet-like 1447:88P/Howell 1438:After 1985 1424:84P/Giclas 1354:70P/Kojima 1349:69P/Taylor 1199:39P/Oterma 1189:37P/Forbes 1169:33P/Daniel 1089:17P/Holmes 1084:16P/Brooks 1079:15P/Finlay 1069:13P/Olbers 1054:10P/Tempel 1029:5D/Brorsen 1000:Until 1985 862:2I/Borisov 745:Oort cloud 677:Sungrazing 660:Hyperbolic 638:Encke-type 570:Comet dust 430:2019-09-30 374:. p.  348:2012-07-26 324:2012-02-19 298:2022-06-22 274:2012-02-19 252:2014-06-18 228:2012-02-18 204:References 99:Perihelion 3135:Zhu–Balam 3089:C/2020 F8 3084:C/2012 E2 3079:C/2006 M4 3037:C/2013 A1 3032:C/2007 Q3 3012:Pojmański 3000:C/2017 K2 2990:C/2014 Q1 2980:C/2012 K1 2975:C/2011 L4 2965:ʻOumuamua 2955:Nishimura 2943:C/2002 V1 2938:C/2001 Q4 2916:C/2009 R1 2911:C/2006 P1 2889:C/2014 Q2 2884:C/2013 R1 2879:C/2011 W3 2874:C/2007 E2 2862:C/2007 F1 2845:C/2002 T7 2840:C/2001 A2 2830:C/1999 S4 2808:C/2019 U6 2803:C/2018 C2 2798:C/2012 F6 2751:C/1964 N1 2746:C/1963 A1 2736:Hyakutake 2726:Hale-Bopp 2699:C/1999 F1 2684:Bradfield 2659:Beljawsky 2637:(by name) 2080:C/1652 Y1 2035:(notable) 2004:C/2006 P1 1998:9P/Tempel 1974:1P/Halley 1897:Not found 1876:Destroyed 1760:Recovered 1702:238P/Read 1680:166P/NEAT 1644:asteroids 1607:323P/SOHO 1602:322P/SOHO 1582:255P/Levy 1567:246P/NEAT 1562:238P/Read 1537:169P/NEAT 1492:126P/IRAS 1440:(notable) 1359:71P/Clark 1254:50P/Arend 1114:22P/Kopff 1049:9P/Tempel 1044:8P/Tuttle 1009:1P/Halley 912:C/2014 UN 882:C/2017 U7 643:Main-belt 25:Discovery 3170:Category 3059:Southern 2906:McNaught 2901:Machholz 2788:Kohoutek 2694:Catalina 2669:Boattini 1992:81P/Wild 1929:34D/Gale 1883:3D/Biela 1409:81P/Wild 1329:65P/Gunn 1319:63P/Wild 1174:34D/Gale 1074:14P/Wolf 1019:3D/Biela 1014:2P/Encke 990:Periodic 755:Asteroid 692:Exocomet 613:Numbered 608:Periodic 565:Antitail 543:Features 481:Previous 185:with an 180:periodic 149:95.6899° 103:1.275 AU 93:14.19 AU 89:Aphelion 3130:Yi–SWAN 3007:Pereyra 2950:NEOWISE 2869:Lovejoy 2815:Leonard 2783:Johnson 2778:Jacques 2773:Iwamoto 2731:Humason 2716:Eclipse 2674:Borisov 2664:Bennett 1024:4P/Faye 723:Centaur 706:Related 687:Extinct 550:Nucleus 421:Bibcode 419:: 102. 2852:LONEOS 2825:LINEAR 2793:Lemmon 2721:Elenin 2689:Brooks 2679:Bowell 2654:Austin 2033:comets 2018:(2014) 2012:(2010) 2006:(2007) 1994:(2004) 1988:(2001) 1982:(1992) 1976:(1986) 1970:(1985) 1698:(176P) 1692:(174P) 1671:(133P) 1665:(107P) 992:comets 785:Latest 733:LINEAR 681:Kreutz 532:Comets 390:  191:period 136:21.51 126:0.8351 113:7.734 3125:] 3103:] 3017:Ryves 2928:Mrkos 2896:Lulin 2741:Ikeya 2295:] 2253:] 1659:(95P) 1002:(all) 600:Types 560:Tails 183:comet 178:is a 79:Epoch 3198:stub 3108:West 3074:SWAN 3054:SOHO 2933:NEAT 2820:Levy 2768:ISON 1752:Lost 1627:362P 977:more 618:Lost 555:Coma 491:Next 388:ISBN 198:IRAS 40:IRAS 3140:ZTF 914:271 380:doi 376:315 3243:: 3123:de 3101:de 2293:de 2251:de 417:27 415:. 411:. 386:. 378:. 370:. 317:. 245:. 138:yr 115:AU 3229:e 3222:t 3215:v 3204:. 2087:) 979:) 975:( 683:) 679:( 524:e 517:t 510:v 433:. 423:: 396:. 382:: 351:. 327:. 301:. 277:. 255:. 231:.

Index

Discovered by
Malcolm Hartley
IRAS
Alternative designations
Orbital characteristics
Epoch
Aphelion
Perihelion
Semi-major axis
AU
Eccentricity
Orbital period
yr
Inclination
periodic
comet
orbital period
period
IRAS
Syuichi Nakano
"161P/Hartley-IRAS (NK 1184)"
"161P/Hartley-IRAS Orbit"
Minor Planet Center
"161P/Hartley-IRAS"
"Horizons Batch for 161P/Hartley-IRAS on 2026-Nov-27"
JPL Horizons
"Note number : 0132 P/Hartley-IRAS : 161P"
Institut de mécanique céleste et de calcul des éphémérides
"JPL Small-Body Database Browser: 161P/Hartley-IRAS"
Jet Propulsion Laboratory

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