List of long-period comets

The following list is of comets with very long orbital periods, defined as between 200 and 1000 years. These comets come from the Kuiper belt and scattered disk, beyond the orbit of Pluto, with possible origins in the Oort cloud for many. For comets with an orbital period of over 1000 years (semi-major axis greater than ~100 AU), see the List of near-parabolic comets.

Comet designation	Name/ discoverer(s)	Period (years)	e	a (AU)	q (AU)	i (°)	Abs. mag (M1)	Last observed perihelion	Next perihelion
C/1811 W1	Pons	755	0.9809	82.881	1.5817	31.2554		1811/11/11	2566
C/1840 U1	Bremiker	286	0.9659	43.453	1.48	57.9043		1840/11/14	2126
C/1843 D1	Great Comet of 1843	513	0.999914	64.267	0.005527	144.3548		1843/02/27	2356
C/1846 J1	Brorsen	538	0.990414	66.1131	0.63376	150.6809		1846/06/05	2384
C/1853 G1	Schweizer	781	0.989286	84.8136	0.908693	122.1955		1853/05/10	2634
C/1855 G1	Schweizer	500	0.965185	63.0052	2.193526	128.5764		1855/02/05	2355
C/1855 L1	Donati	252	0.98578	39.9131	0.567564	156.8707		1855/05/30	2107
C/1857 O1	Peters	235	0.980414	38.1315	0.746843	32.7565		1857/08/24	2092
C/1861 G1	A. E. Thatcher	415	0.983465	55.6819	0.9207	79.7733		1861/06/03	2276
C/1861 J1	Great Comet of 1861	409	0.98507	55.0827	0.822384	85.4424		1861/06/12	2270
C/1874 Q1	Coggia	306	0.962822	45.4028	1.687985	34.1267		1874/07/18	2180
C/1882 R1-A	Great September Comet of 1882	669	0.999899	76.7327	0.00775	142.0112		1882/09/17	2551
C/1882 R1-B	Great September Comet of 1882	759	0.999907	83.3441	0.007751	142.0111		1882/09/17	2641
C/1882 R1-C	Great September Comet of 1882	874	0.999915	91.1882	0.007751	142.0105		1882/09/17	2756
C/1882 R1-D	Great September Comet of 1882	952	0.99992	96.8625	0.007749	142.0093		1882/09/17	2834
C/1885 R1	Brooks	275	0.982264	42.2389	0.749149	59.097		1885/08/10	2160
C/1886 H1	Brooks	768	0.996783	83.8679	0.269803	33.8679		1886/06/07	2654
C/1887 B2	Brooks	999	0.983694	99.9721	1.630145	104.2738		1887/03/17	2986
C/1894 G1	Gale	958	0.989884	97.176	0.983032	86.9666		1894/04/13	2852
C/1898 F1	Perrine	419	0.980454	56.035	1.095261	72.5292		1898/03/17	2317
C/1905 F1	Giacobini	220	0.9	36	1.11	40		1905/04/04	2125
C/1906 V1	Thiele	420	0.979	56	1.2122	56.35		1906/11/21	2300
C/1930 F1	Wilk	485	0.992194	61.723	0.48181	67.1409		1930/03/28	2415
C/1931 O1	Nagata	357	0.979203	50.3391	1.046903	42.2957		1931/06/11	2288
C/1932 G1	Houghton-Ensor	302	0.972127	45.0052	1.254431	74.2776		1932/02/28	2234
C/1932 P1	Peltier–Whipple	291	0.976369	43.8914	1.037198	71.7195		1932/09/01	2223
C/1932 Y1	Dodwell-Forbes	262	0.972386	40.9498	1.130788	24.5025		1932/12/30	2194
C/1935 A1	Johnson	901	0.991304	93.2783	0.811148	65.4251		1935/02/26	2836
C/1936 O1	Kaho-Kozik-Lis	888	0.994389	92.3905	0.518403	121.9417		1936/06/15	2824
C/1937 P1	Hubble	599	0.972499	71.0395	1.953657	11.5806		1936/11/14	2535
C/1940 O1	Whipple–Paraskevopoulos	425	0.980843	56.4926	1.082228	54.6906		1940/10/08	2365
C/1941 B1	Friend-Reese-Honda	355	0.981221	50.1552	0.941864	26.2756		1941/01/20	2296
C/1952 H1	Mrkos	645	0.982816	74.6448	1.282696	112.0282		1952/06/08	2597
C/1955 L1	Mrkos	356	0.989361	50.2321	0.534419	86.5016		1955/06/04	2311
C/1961 T1	Seki	759	0.991812	83.1862	0.681129	155.707		1961/10/10	2720
C/1963 A1	Ikeya	932	0.993377	95.446	0.632139	160.6487		1963/03/21	2895
C/1963 R1	Pereyra	903	0.999946	93.7963	0.005065	133.5821		1963/08/23	2866
C/1964 N1	Ikeya	391	0.984643	53.5099	0.821752	171.92		1964/08/01	2355
C/1965 S1-A	Ikeya–Seki	880	0.999915	91.6	0.007786	141.8642		1965/10/21	2845
C/1973 H1	Huchra	829	0.972977	88.2336	2.384337	48.329		1973/03/11	2802
C/1974 O1	Cesco	551	0.979579	67.2323	1.372951	173.1585		1974/05/12	2525
C/1975 T2	Suzuki-Saigusa-Mori	446	0.985653	58.4127	0.838047	118.2332		1975/10/15	2421
C/1979 S1	Meier	391	0.973197	53.4299	1.432081	67.084		1979/10/17	2370
C/1979 Y1	Bradfield	303	0.98792	45.1	0.54526	148.6024	8.4	1979/12/21	2282
C/1983 H1	IRAS-Araki-Alcock	968	0.98987	97.86	0.9913399	73.2526	12.599	1983/05/21	2951
C/1984 U2	Shoemaker	270	0.970905	41.7429	1.21451	13.8812		1985/01/03	2255
C/1985 T1	Thiele	700	0.983297	78.8565	1.31714	139.0692		1985/12/19	2685
C/1986 E1	Shoemaker	555	0.94678	67.5284	3.593864	159.809		1986/03/11	2541
C/1987 B2	Terasako	724	0.995125	80.6195	0.39302	40.8543		1986/12/24	2710
C/1992 Q2	Helin–Lawrence	452	0.965365	58.8554	2.038458	106.8481		1993/03/15	2445
C/1992 W1	Ohshita	719	0.99721	80.2191	0.664134	115.1232		1992/11/01	2711
C/1994 E1	Mueller	408	0.968171	55.0218	1.75129	145.1425		1993/11/28	2401
C/1995 Q2	Hartley-Drinkwater	424	0.966518	56.4229	1.889153	168.0075		1995/08/02	2419
C/1997 O1	Tilbrook	811	0.98422	86.96	1.371807	115.8024	8	1997/07/13	2808
C/1998 K1	Mueller	491	0.94511	62.2	3.41659	35.6361	8	1998/09/01	2489
C/1998 K5	LINEAR	616	0.98669	72.39	0.9635469	9.92714	16.1	1998/07/17	2613
C/1999 L3	LINEAR	683.5	0.97437	77.59	1.988917	166.09928	8.8	2000/01/04	2683/06/01
C/2000 J1	Ferris	370	0.951	51	2.5417	98.78	14.2	2000/05/11	2370
C/2001 S1	Skiff	388	0.9295	53.2	3.749	139.1322	5.9	2001/06/02	2389
C/2002 Q2	LINEAR	420	0.977	56	1.3029	96.76	16.4	2002/08/17	~2450
C/2003 H2	LINEAR	235.9	0.94293	38.18	2.17853	72.218	14.2	2003/05/17	2239/05/01
C/2003 K1	Spacewatch	250	0.947	40	2.086	129.81	14.4	2002/12/20	2250
C/2003 S4-A	LINEAR	224	0.895	36.9	3.874	40.71	12.3	2004/05/30	2230
C/2003 S4-B	LINEAR	253	0.904	40	3.84	40.43	12.4	2004/05/23	2250
C/2004 DZ₆₁	Catalina (CSS)–LINEAR	309.81	0.956027	45.786	2.01333	66.80929	12.4	2004/05/26	2314/04/01
C/2004 HV₆₀	Spacewatch	347.80	0.938	49.46	3.07	92.53	13	2003/12/16	2351
C/2004 K3	LINEAR	438	0.9809	57.7	1.10334	111.9279	16.9	2004/06/30	2440
C/2005 H1	LINEAR	314.4	0.89687	46.24	4.7686	81.5121	9.8	2004/10/28	2319/04/01
C/2005 N4	Catalina (CSS)	444	0.9604	58.2	2.30373	116.6298	14.2	2005/07/02	2450
C/2005 O1	NEAT	365	0.9297	51.1	3.5909	155.981	6.3	2005/05/17	2370
C/2005 P3	SWAN	279	0.98768	42.7	0.52578	89.708	14.2	2005/08/09	2285
C/2006 S5	Hill	961.7	0.973002	97.430	2.630434	10.13138	9.6	2007/12/09	2969/08/28
C/2007 D2	Spacewatch	420	0.97771	56	1.2457	178.618	15.4	2006/11/24	2425
C/2007 E1	Garradd	524.06	0.980218	65.001	1.2858628	174.394	13.7	2007/05/23	2531/06/01
C/2007 H2	Skiff	351.67	0.9717	49.822	1.4105	52.191	15.9	2007/02/17	2358
C/2007 K5	Lovejoy	340	0.9766	49	1.1491	64.884	12	2007/05/01	2350
C/2007 T5	Gibbs	320.98	0.91362	46.88	4.049254	45.61521	10	2008/05/24	2328/05/01
C/2008 H1	LINEAR	371	0.9465	51.6	2.76026	75.492	10.4	2008/03/16	2380
C/2008 J5	Garradd	616	0.97288	72.4	1.96384	93.271	10.6	2008/04/01	2625
C/2008 X3	LINEAR	289.6	0.95654	43.77	1.90213	66.4751	11.8	2008/10/10	2298
C/2009 B2	LINEAR	270	0.9443	41.8	2.32762	156.873	13	2009/03/07	2279
C/2009 E1	Itagaki	254.67	0.985073	40.177	0.5997215	127.4534	13.5	2009/04/07	2263/12/01
C/2009 F5	McNaught	718	0.972	80.2	2.24534	84.9905	10.2	2008/11/04	2726
C/2009 K4	Gibbs	268	0.9628	41.6	1.5489	34.8248	13.8	2009/06/19	2280
C/2010 D4	WISE	520.1	0.88947	64.67	7.14822	105.65965	8.4	2009/03/30	2519/05/01
C/2010 DG₅₆	WISE	555	0.97644	67.54	1.591452	160.41734	14.3	2010/05/15	2565
C/2010 F1	Boattini	566	0.9476	68.4	3.58752	64.936	6.3	2009/11/10	2575
C/2010 F3	Scotti	497.7	0.91327	62.8	5.44669	4.64758	9.8	2010/08/04	2508
C/2010 G2	Hill	943.41	0.9794077	96.19	1.9807735	103.745293	9	2011/09/02	2955/02/01
C/2010 J1	Boattini	222.5	0.9538	36.72	1.69566	134.3849	11.4	2010/02/04	2232
C/2010 KW₇	WISE	997.7	0.97425	99.84	2.570441	147.06087	12.3	2010/10/11	3008
C/2010 L4	WISE	717	0.9647	80.1	2.8255	102.818	12.8	2010/02/23	2726
C/2011 KP₃₆	Spacewatch	238.03	0.872862	38.4077	4.883081	18.985920	7.3	2016/05/27	2254/06/05
C/2011 Q4	SWAN	282.35	0.974157	43.039	1.112228	147.84307	11.8	2011/09/21	2294/01/27
C/2011 W3	Lovejoy	698	0.9999294	78.7	0.0055538	134.356	15.3	2011/12/16	2710
C/2012 F1	Gibbs	630	0.965	74	2.5509	129.3968	13.8	2012/02/19	2645
C/2012 Y1	LINEAR	233.8	0.94687	37.95	2.0162	20.9594	15.1	2013/01/18	2246
C/2013 J6	Catalina (CSS)	463	0.9596	59.9	2.41572	85.055	12.7	2013/04/09	2475
C/2013 K1	Christensen	713	0.98811	79.8	0.948263	42.3415	18.4	2013/05/30	2725
C/2013 N4	Borisov	333	0.974805	48.04	1.210405	37.03523	10.6	2013/08/21	2346
C/2013 PE₆₇	Catalina (CSS)–Spacewatch	415.1	0.966806	55.64	1.847072	116.71754	13.3	2013/12/09	2429/01/01
C/2013 UQ₄	Catalina (CSS)	471.43	0.9821538	60.572	1.08097487	145.25856	11.4	2014/07/05	2485/12/09
C/2014 G3	PANSTARRS	421	0.9164	56.2	4.6986	155.8268	5.5	2015/02/02	2436
C/2014 S3	PANSTARRS	900	0.977	90	2.049	169.321	17.7	2014/08/13	2900
C/2015 D4	Borisov	700	0.98907	78.8	0.86168	77.3017	9.4	2014/10/28	2714
C/2015 F2	Polonia	237.6	0.96844	38.36	1.210552	28.6937	14.9	2015/04/28	2252/11/29
C/2015 T4	PANSTARRS	812.2	0.973620	87.05	2.296376	87.91718	7.0	2016/06/18	2828
C/2016 A8	LINEAR	207.6	0.94635	35.06	1.881129	148.21184	10.3	2016/08/30	2224
C/2016 C2	NEOWISE	512	0.97563	64.00	1.559751	38.1565	13.8	2016/04/19	2528
C/2016 R3	Borisov	997.76	0.9955	99.849	0.4468	53.067	18.1	2016/10/10	3014
C/2017 A1	PANSTARRS	800	0.974	90	2.290	49.81	13.1	2017/05/17	2800
C/2017 A3	Elenin	285.45	0.911	43.35	3.8545	98.5	9.7	2017/01/30	2302
C/2017 C2	PANSTARRS	976.33	0.9753	98.414	2.431	118.584	12	2017/01/21	2993
C/2018 E1	ATLAS	403.05	0.9504	54.5634	2.7055	72.4796	11.7	2018/4/17	2421
C/2019 A9	PANSTARRS	242.22	0.9633	38.8574	1.4264	84.3402	9.0	2019/07/26	2261
C/2019 J1	Lemmon	609.24	0.96551	71.8650	2.4788	24.5502	11.8	2019/04/09	2628
C/2019 Y4-D	ATLAS	491.16	0.996	62.25	0.25	45.88	13.5	2020/05/31	2511
C/2020 B2	Lemmon	559.27	0.959	67.88	2.768	55.704	17.2	2020/01/26	2579
C/2020 K4	PANSTARRS	299.66	0.9604	44.7795	1.7723	125.907	16.9	2020/03/06	2320
C/2020 Q1	Borisov	454.78	0.97776	59.137	1.315	142.924	11.6	2020/08/14	2501
C/2020 R4	ATLAS	933.77	0.98924	95.5331	1.0283	164.462	16.0	2021/03/01	2955
C/2020 U3	Rankin	519.34	0.96477	64.61	2.2762	30.177	11.9	2021/02/05	2540
C/2020 X4	Leonard	312.03	0.88679	46.00	5.2083	80.4859	9.1	2020/11/11	2332
C/2021 A4	NEOWISE	280.22	0.97325	42.82	1.1455	111.57	13.7	2021/03/20	2301
C/2021 A10	NEOWISE	894.04	0.98633	92.804	1.269	151.52	19.6	2021/03/15	2915
C/2021 B2	NEOWISE	206.66	0.9382	34.953	2.160	119.49	13.9	2021/03/10	2227
C/2021 C3	Catalina (CSS)	503.89	0.9640	63.321	2.2765	122.16	16.1	2021/02/12	2525
C/2021 D1	SWAN	947.05	0.9904	96.44	0.9018	31.27	13.3	2021/02/27	2969
C/2021 G1	Leonard	646.49	0.9547	75.535	3.424	131.57	13.7	2021/07/22	2667
C/2021 Q3	ATLAS	641.70	0.9300	74.396	5.205	77.78	6.8	2022/01/26	2662
C/2021 U4	Leonard	300.59	0.9601	44.872	1.787	152.88	18.8	2021/12/21	2322
C/2022 J1	Maury-Attard	329.62	0.9664	47.716	1.604	105.93	11.9	2022/02/19	2351
C/2022 J2	Bok	877.30	0.9801	91.642	1.827	149.09	18.3	2022/10/27	2900
C/2022 JK₅	PANSTARRS	283.53	0.9377	43.158	2.687	16.83	13.46	2023/04/28	2306
C/2022 N1	Attard-Maury	224.28	0.9599	36.913	1.482	164.74	14.9	2022/09/10	2247
C/2022 U2	ATLAS	937.03	0.9861	95.755	1.328	48.25	13.5	2023/01/14	2960
C/2022 V2	Lemmon	223.12	0.944	36.786	2.064	98.91	13.6	2023/11/01	2246
C/2023 P1	Nishimura	434.7	0.996	57.386	0.225	132.47	12.7	2023/09/17	2431
Used sources: MPC—List Periodic Comet Numbers[1] IAU–CBAT: 200 Most Recent IAUCs[2] IAU–CBAT: Astronomical Headlines[3] PDS SBN—Planetary Data System Small Bodies Node: Periodic Comet Names and Designations[4] JPL Small-Body Database Browser[5]

References

"Periodic Comet Numbers". Minor Planet Center. Retrieved 1 January 2015.
"Minor Planet Circulars, 200 Most Recent IAUCs". Minor Planet Center. Retrieved 1 January 2015.
"Astronomical Headlines". Minor Planet Center. Retrieved 1 January 2015.
"Periodic Comet Names and Designations". Planetary Data System Small Bodies Node. Archived from the original on 30 May 2010. Retrieved 1 January 2015.
"Small-Body Database Browser". JPL. Retrieved 1 January 2015.

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[1] "Periodic Comet Numbers". Minor Planet Center. Retrieved 1 January 2015.

[2] "Minor Planet Circulars, 200 Most Recent IAUCs". Minor Planet Center. Retrieved 1 January 2015.

[3] "Astronomical Headlines". Minor Planet Center. Retrieved 1 January 2015.

[4] "Periodic Comet Names and Designations". Planetary Data System Small Bodies Node. Archived from the original on 30 May 2010. Retrieved 1 January 2015.

[5] "Small-Body Database Browser". JPL. Retrieved 1 January 2015.

List of long-period comets

See also

References