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, see the List of near-parabolic comets.

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