List of periodic comets

Periodic comets (also known as short-period comets) are comets with orbital periods of less than 200 years or that have been observed during more than a single perihelion passage^[1] (e.g. 153P/Ikeya–Zhang). "Periodic comet" is also sometimes used to mean any comet with a periodic orbit, even if greater than 200 years.

Periodic comets receive a permanent number prefix usually after the second perihelion passage, which is why there are a number of unnumbered periodic comets, such as P/2005 T5 (Broughton). Comets that are not observed after a number of perihelion passages, or presumed to be destroyed, are given the D designation, and likewise comets given a periodic number and subsequently lost are given [n]D instead of [n]P, such as 3D/Biela or 5D/Brorsen.

In nearly all cases, comets are named after their discoverers, but in a few cases such as 2P/Encke and 27P/Crommelin they were named for a person who calculated their orbits (the orbit computers). The long-term orbits of comets can be difficult to calculate due to errors in the known trajectory that can accumulate from perturbations from the planets. Even so, quite a few comets were lost because their orbits are also affected by non-gravitational effects such as the release of gas and other material that forms the comet's coma and tail. Unlike a long-period comet, the next perihelion passage of a numbered periodic comet can be predicted with a high degree of accuracy.

Periodic comets sometimes bear the same name repeatedly (e.g. the nine Shoemaker–Levy comets or the twenty-four NEAT comets); the IAU system distinguishes between them either through the number prefix or by the full designation (e. g. 181P and 192P/Shoemaker–Levy are both "Comet Shoemaker–Levy"). In the literature, an informal numbering system is applied to periodic comets (skipping the non-periodic ones), thus 181P and 192P are known as Comet Shoemaker–Levy 6 and Comet Shoemaker–Levy 1, respectively. Non-periodic Shoemaker–Levy comets are interleaved in this sequence: C/1991 B1 between 2 and 3, C/1991 T2 between 5 and 6, C/1993 K1 and C/1994 E2 after Shoemaker–Levy 9.

In comet nomenclature, the letter before the "/" is either "C" (a non-periodic comet), "P" (a periodic comet), "D" (a comet that has been lost or has disintegrated), "X" (a comet for which no reliable orbit could be calculated —usually historical comets), "I" for an interstellar object, or "A" for an object that was either mistakenly identified as a comet, but is actually a minor planet,^[1] or for an object on a hyperbolic orbit that does not show cometary activity.^[2] Some lists retain the "C" prefix for comets of periods larger than about 30 years until their return is confirmed.^[3]

List of Halley-type comets

List of unnumbered Jupiter-Family comets

While Jupiter-family comets are officially defined by 2 < T_Jupiter < 3, they can also be loosely defined as any comet with a period of less than 20 years, a relatively low inclination, and an orbit coinciding loosely with that of Jupiter. These comets are often patchily observed, as orbital interactions with the planet often cause comets' orbits to become perturbed, causing them to not be found at the expected position in the sky and subsequently lost. Additionally, their low cometary albedos and frequent proximity to the Sun compared to Oort Cloud comets cause them to much more quickly become depleted of volatiles, making them comparatively dimmer than comets with longer orbital periods.

Comet designation	Name/ discoverer(s)	Period (years)	e	a (AU)	q (AU)	i (°)	Abs. mag (M1)	Last observed perihelion	Next perihelion	Ref
X/1979 O3	Kowal	5.44	0.33	3.09	2.07	1.75	15.8	1979/07/26	1985
X/1981 R1	Stattmayer	3.84	0.26	2.45	1.28	11.00	13.4	1981/08/18	1986
X/1991 G1	Meyer	3.73	0.44	2.41	1.36	5.96	18.7	1991/04/11	1995^[4]
P/1996 R2	Lagerkvist	7.36	0.30998	3.782	2.60964	2.6054	6.3	1997/01/19	2004/05/30	MPC · JPL
P/1998 VS₂₄	LINEAR	9.56	0.24393	4.5041	3.4054	5.031	11.3	1998/11/03	2008/05/26	MPC · JPL
C/1999 J6	SOHO	5.46	0.98418	3.1005	0.04906	26.61		2004/11/08	2021/03/27	MPC · JPL
P/1999 RO₂₈	LONEOS	6.62	0.65079	3.5272	1.23176	8.191	19.4	1999/10/02	2006/05/17	MPC · JPL
P/1999 XN₁₂₀	Catalina	8.55	0.21391	4.1806	3.2863	5.0283	9.9	2000/05/01	2008/11/17	MPC · JPL
P/2000 R2	LINEAR	6.1	0.5837	3.338	1.38997	3.2163	17.6	2000/09/12	2006/10/18	MPC · JPL
P/2001 H5	NEAT	14.68	0.6002	5.995	2.3966	8.3993	6.8	2001/01/28	2015/10/03	MPC · JPL
P/2002 EJ₅₇	LINEAR	16.53	0.59391	6.49	2.6355	4.9697	15.8	2001/12/19	2018/06/30	MPC · JPL
C/2002 R5	SOHO	5.77	0.98526	3.21612	0.0474	14.12		2002/09/05	2008/02/02	MPC · JPL
P/2002 S7	SOHO	5.79	0.98496	3.22344	0.04849	13.6		2002/09/21	2008/07/06	MPC · JPL
P/2003 F2	NEAT	16.58	0.54219	6.503	2.9772	11.605	13.7	2003/04/14	2019/11/12	MPC · JPL
P/2003 T12	SOHO	4.12	0.775433	2.570078	0.57716	11.4579	19.7	2016/03/09	2020/05/06	MPC · JPL
X/2004 D5	Murakami				1.1			2004/02/15	?
P/2004 FY₁₄₀	LINEAR	11.02	0.1709	4.9523	4.1061	2.1279	12.5	2004/08/06	2015/08/13	MPC · JPL
P/2004 R3	LINEAR-NEAT	7.52	0.44184	3.8367	2.14148	7.9723	13.5	2004/05/24	2011/11/30	MPC · JPL
P/2005 E1	Tubbiolo	19.42	0.3847	7.225	4.4456	5.154	10.7	2005/03/18	2024/08/15	MPC · JPL
P/2005 J1	McNaught	6.74	0.57096	3.5664	1.53015	31.7659	13.4	2005/04/17	2012/01/12	MPC · JPL
P/2005 L1	McNaught	7.92	0.20924	3.9745	3.1428	7.7369	10.2	2005/12/13	2013/11/14	MPC · JPL
P/2005 SB₂₁₆	LONEOS	18.97	0.463208	7.11312	3.818266	24.09843	9.9	2007/02/11	2018/01/31	MPC · JPL
P/2005 T5	Broughton	19.54	0.55245	3.2468	3.2468	21.3724	11.2	2005/11/03	2025/05/19	MPC · JPL
P/2005 XR₁₃₂	Spacewatch	7.29	0.432	3.759	2.135	14.475	16.44	2020/11/26	2028	MPC · JPL
P/2007 C2	Catalina	18.63	0.462251	7.0283	3.779481	8.6747	10	2007/09/04	2026/04/22	MPC · JPL
P/2007 K2	Gibbs	19.23	0.684	7.18	2.2686	7.6197	14	2007/06/08	2026/09/01	MPC · JPL
P/2007 Q2	Gilmore	13.23	0.67123	5.594	1.83902	10.2384	16.7	2007/08/23	2020/11/15	MPC · JPL
P/2007 S1	Zhao	7.4	0.34339	3.7989	2.4944	5.973	13.5	2007/12/06	2015/05/01	MPC · JPL
P/2007 T2	Kowalski	5.43	0.77483	3.0904	0.695863	9.89528	18.6	2007/09/19	2013/02/23	MPC · JPL
P/2008 Y12	SOHO	5.4	0.9787	3.07822	0.0654	23.35		2008/12/22	2014/05/17	MPC · JPL
P/2009 B1	Boattini	17.3	0.63719	6.688	2.42659	22.2285	13.2	2009/02/06	2026/05/27	MPC · JPL
P/2009 WX₅₁	Catalina	5.41	0.740297	3.0803	0.799956	9.5926	20.6	2010/01/31	2015/06/30	MPC · JPL
P/2009 Y2	Kowalski	16.6	0.64052	6.507	2.33919	29.9296	6.1	2010/03/30	2026/11/04	MPC · JPL
P/2010 A3	Hill	14.91	0.73223	6.0568	1.621828	15.02825	6.5	2010/04/03	2025/03/01	MPC · JPL
P/2010 C1	Scotti	18.78	0.25911	7.0657	5.2349	9.14247	5.7	2009/12/01	2028/09/12	MPC · JPL
P/2010 D2	WISE	17.3	0.45301	6.6894	3.65902	57.17704	11.1	2010/03/05	2027/06/23	MPC · JPL
P/2010 H2	Vales	7.56	0.192894	3.85038	3.10767	14.2529	6.9	2010/03/09	2017/09/29	MPC · JPL
P/2010 H4	Scotti	17.05	0.272	6.624	4.821	2.314	10.8	2010/07/03	2027/07/21	MPC · JPL
P/2010 H5	Scotti	19.09	0.15646	7.1436	6.0259	14.0871	9.6	2010/04/17	2029/05/20	MPC · JPL
P/2010 T2	PANSTARRS	13.06	0.3231	5.546	3.754	8.0109	6.4	2011/07/09	2024/07/31	MPC · JPL
P/2010 U1	Boattini	17.09	0.26112	6.636	4.90317	8.24623	6	2010/03/28	2027/04/30	MPC · JPL
P/2010 UH₅₅	Spacewatch	16.63	0.57514	6.515	2.767969	8.66257	6.6	2011/05/10	2027/12/26	MPC · JPL
P/2010 WK	LINEAR	13.72	0.691987	5.7309	1.765178	11.47913	12.4	2010/10/19	2024/07/09	MPC · JPL
P/2011 C2	Gibbs	19.99	0.26846	7.366	5.38854	10.91098	6.2	2012/01/07	2032/01/03	MPC · JPL
P/2011 FR₁₄₃	Lemmon	17.85	0.45305	6.8296	3.73541	16.01358	11.1	2011/03/10	2029/01/14	MPC · JPL
P/2011 N1	ASH	15.79	0.545926	6.2935	2.857712	35.66877	10.3	2012/05/31	2028/03/15	MPC · JPL
P/2011 UA₁₃₄	Spacewatch-PANSTARRS	13.2	0.6327	5.5854	2.05151	10.5395	15.7	2011/12/07	2025/02/18	MPC · JPL
P/2011 V1	Boattini	7.53	0.555	3.843	1.7094	7.397	13.7	2011/05/11	2018/11/15	MPC · JPL
P/2011 W1	PANSTARRS	10.05	0.28866	4.65606	3.31206	3.71861	6.2	2012/01/22	2022/02/09	MPC · JPL
P/2011 Y2	Boattini	15.53	0.71291	6.2251	1.787145	6.35139	13.6	2012/03/21	2027/09/03	MPC · JPL
P/2012 B1	PANSTARRS	16.53	0.4104966	6.4887702	3.8251522	7.62779	5.6	2013/07/23	2030/02/01	MPC · JPL
P/2012 F2	PANSTARRS	15.92	0.54224	6.3287	2.89707	14.72465	12	2013/04/10	2029/03/12	MPC · JPL
P/2012 G1	PANSTARRS	8.60	0.3852	4.1967	2.580	11.6965	15.2	2012/06/06	2021/01/08	MPC · JPL
P/2012 K3	Gibbs	6.88	0.42596	3.618	2.07686	13.2012	6.9	2012/09/30	2019/08/17	MPC · JPL
P/2012 O1	McNaught	6.73	0.57925	3.563	1.499145	11.4286	16.6	2012/07/23	2019/04/15	MPC · JPL
P/2012 O2	McNaught	6.82	0.53827	3.597	1.660834	24.5274	17.3	2012/06/25	2019/04/20	MPC · JPL
P/2012 S2	La Sagra	9.33	0.69059	4.4316	1.371192	8.58181	15.3	2021/12/16	2031/02/11	MPC · JPL
P/2012 SB₆	Lemmon	7.73	0.38462	3.91053	2.4065	10.9897	14.1	2020/07/24	2027/12/21	MPC · JPL
P/2012 T2	PANSTARRS	13.73	0.159	5.735	4.823	12.562	10.2	2013/04/10	2026/12/31	MPC · JPL
P/2012 T3	PANSTARRS	14.66	0.602	5.990	2.39	9.51	14.8	2012/04/15	2026/12/24	MPC · JPL
P/2012 U2	PANSTARRS	19.94	0.50657	7.3522	3.6278	10.5345	12.1	2012/12/04	2032/11/12	MPC · JPL
P/2012 US₂₇	Siding Spring	11.79	0.64858	5.1814	1.820844	39.29295	6.8	2013/02/08	2024/11/23	MPC · JPL
P/2013 AL₇₆	Catalina	16.6	0.685	6.51	2.0476	144.861	16	2012/12/13	2029/06/08	MPC · JPL
P/2013 G1	Kowalski	18.03	0.51237	6.8765	3.353099	5.46867	10.3	2013/12/10	2031/12/21	MPC · JPL
P/2013 G4	PANSTARRS	9.33	0.4104	4.432	2.6132	5.926	15.1	2013/02/09	2022/06/09	MPC · JPL
P/2013 J2	McNaught	15.61	0.656146	6.24634	2.147828	15.49553	10.8	2013/08/22	2029/04/02	MPC · JPL
P/2013 N5	PANSTARRS	17.74	0.7319	6.801	1.82305	23.2425	14.7	2013/07/02	2031/03/29	MPC · JPL
P/2013 R3	Catalina-PANSTARRS	5.28	0.27345	3.03293	2.20358	0.89893	6.4	2013/08/05	2018/11/15	MPC · JPL
P/2013 R3-A	Catalina-PANSTARRS	5.28	0.2733	3.0327	2.2038	0.898		2013/08/05	2018/11/15	MPC · JPL
P/2013 R3-B	Catalina-PANSTARRS	5.28	0.2733	3.0327	2.2038	0.8996		2013/08/05	2018/11/15	MPC · JPL
P/2013 T1	PANSTARRS	14.21	0.6233	5.867	2.2105	24.21	16.6	2013/07/31	2027/10/16	MPC · JPL
P/2013 T2	Schwartz	6.25	0.52849	3.3926	1.59962	9.3521	14.4	2013/06/20	2020/09/19	MPC · JPL
P/2013 W1	PANSTARRS	6.51	0.59388	3.4857	1.415614	4.69951	16.5	2014/03/08	2020/09/11	MPC · JPL
P/2013 YG₄₆	Spacewatch	6.02	0.4516	3.3103	1.815	8.217	10.6	2017/01/19	2023/01/26	MPC · JPL
P/2014 A2	Hill	14.42	0.64983	5.9248	2.07468	24.5135	13.4	2013/10/28	2027/03/30	MPC · JPL
P/2014 C1	TOTAS	5.31	0.446	3.043	1.6857	2.6796	15.6	2013/12/18	2019/04/10	MPC · JPL
P/2014 L2	NEOWISE	15.91	0.646763	6.32589	2.234541	5.18441	8.6	2014/07/15	2030/06/15	MPC · JPL
P/2014 M4	PANSTARRS	14.02	0.59557	5.8139	2.3513	3.34519	13.1	2014/12/27	2029/01/02	MPC · JPL
P/2014 MG₄	Spacewatch-PANSTARRS	11.22	0.259172	5.01227	3.71323	9.36876	8.5	2013/06/13	2024/09/01	MPC · JPL
P/2014 U4	PANSTARRS	6.51	0.4711	3.4853	1.8434	6.4571	15.4	2014/08/03	2020/02/05	MPC · JPL
P/2014 V1	PANSTARRS	12.59	0.526	5.414	2.563	22.461	13.3	2015/01/21	2027	MPC · JPL
P/2014 VF40	PANSTARRS	7.32	0.494	3.768	1.908	24.611	17.0	2023/05/31	2030	MPC · JPL
P/2015 C1	TOTAS-Gibbs	17.00	0.56256	6.6126	2.89264	13.8774	12.8	2015/05/01	2032/05/01	MPC · JPL
C/2015 D1	SOHO	11	0.9943	4.9	0.02832	69.62	14.7	2015/02/19	2026	MPC · JPL
P/2015 D6	Lemmon-PANSTARRS	19.48	0.3696	7.239	4.5637	20.1839	11.0	2015/07/13	2035/01/03	MPC · JPL
P/2015 K5	PANSTARRS	17.32	0.5540	6.694	2.9861	39.987	13.7	2015/06/06	2032/09/30	MPC · JPL
P/2015 M2	PANSTARRS	19.33	0.17896	7.2017	5.9128	3.9741	8.2	2015/08/31	2024/12/29	MPC · JPL
P/2015 P4	PANSTARRS	14.97	0.58424	6.0736	2.52516	8.71375	6.5	2016/01/19	2031/01/08	MPC · JPL
P/2015 PD₂₂₉	Cameron-ISON	19.23	0.32673	7.1768	4.83188	2.02687	11.0	2015/08/14	2034/11/06	MPC · JPL
C/2015 R1	PANSTARRS	14.32	0.63286	5.8982	2.16545	22.6683	13.4	2015/06/25	2030/01/04	MPC · JPL
P/2015 R2	PANSTARRS	9.1	0.440	4.36	2.44	14.8	15.8	2015/06/19	2021/07/29	MPC · JPL
P/2015 TO₁₉	Lemmon-PANSTARRS	9.75	0.35898	4.5638	2.92547	6.4999	6.6	2016/03/06	2025/12/04	MPC · JPL
P/2015 TP₂₀₀	LINEAR	19.72	0.53621	7.2993	3.38531	8.77231	13.9	2016/10/28	2036/07/18	MPC · JPL
P/2015 W2	Catalina	19.80	0.63411	7.3200	2.67834	11.6113	13.7	2015/09/30	2035/07/19	MPC · JPL
P/2015 X3	PANSTARRS	11.26	0.4382	5.024	2.822	24.38	14.5	2015/08/07	2026/11/09	MPC · JPL
P/2015 X6	PANSTARRS	4.57	0.1700	2.756	2.2873	4.5583	16.1	2016/03/18	2020/07/08	MPC · JPL
P/2016 A2	Christensen	10.34	0.274	4.75	3.45	26.8	12.1	2015/06/16	2025/10/19	MPC · JPL
P/2016 A7	PANSTARRS	11.26	0.56662	5.0225	2.17665	16.6374	7.3	2016/02/25	2027/05/31	MPC · JPL
P/2016 G1	PANSTARRS	4.15	0.21003	2.58322	2.04068	10.9685	14.7	2017/01/26	2021/03/21	MPC · JPL
P/2016 J1-A	PANSTARRS	5.65	0.228265	3.17209	2.44801	14.33019	16.5	2016/06/24	2022/02/16	MPC · JPL
P/2016 J1-B	PANSTARRS	5.65	0.228231	3.17201	2.44806	14.3312	16.8	2016/06/24	2022/02/16	MPC · JPL
P/2016 P1	PANSTARRS	5.8	0.294	3.23	2.28	26	15.5	2015/09/07	2021/08/11	MPC · JPL
P/2016 R4	Gibbs	12.32	0.47506	5.3350	2.80052	10.8621	13.1	2016/07/20	2028/11/13	MPC · JPL
P/2017 B4	PANSTARRS	9.1	0.360	4.37	2.80	19.9	14.6	2017/01/21	2026/05/06	MPC · JPL
P/2017 D1	Fuls	10.52	0.44033	4.80244	2.688	20.7326	13.4	2016/06/28	2027/01/06	MPC · JPL
P/2017 K3	Gasparovic	13.16	0.58125	5.574272	2.3342	4.27872	14.6	2017/05/31	2030/07/29	MPC · JPL
P/2017 S8	PANSTARRS	4.63	0.393696	2.77621	1.68322	29.85994	14.8	2018/01/28	2022/09/13	MPC · JPL
P/2017 TW₁₃	Lemmon	19.17	0.7098	7.163	2.07878	44.837	15	2018/06/20	2037/08/22	MPC · JPL
P/2017 U3	PANSTARRS	10.97	0.0997	4.936	4.444	15.909	11.1	2019/04/22	2030/04/09	MPC · JPL
P/2018 A4	PANSTARRS	36.35	0.7818	10.974	2.395	3.1423	6.9	2018/05/19	2054	MPC · JPL
P/2018 A5	PANSTARRS	13.42	0.5230	5.648	2.694	23.577	13.9	2017/09/23	2031	MPC · JPL
P/2018 C1	Lemmon-Read	13.17	0.5345	5.577	2.596	5.1350	13.9	2018/02/24	2031	MPC · JPL
P/2018 H2	PANSTARRS	9.25	0.5398	4.405	2.027	7.389	15.4	2018/01/23	2027	MPC · JPL
P/2018 L1	PANSTARRS	6.95	0.4822	3.642	1.886	10.588	14.6	2018/11/12	2025	MPC · JPL
P/2018 L4	PANSTARRS	10.94	0.6598	4.928	1.676	26.619	8.9	2018/07/31	2029	MPC · JPL
P/2018 L5	Leonard	6.88	0.363355	3.61815	2.3035	2.209	6.8	2018/05/04	2025	MPC · JPL
P/2018 P4	PANSTARRS	17.17	0.449	6.656	3.6664	23.108	12.1	2018/11/06	2036	MPC · JPL
C/2018 P5	PANSTARRS	45.42	0.6405	12.72968	4.576	7.2568	6.5	2019/02/26	2064	MPC · JPL
P/2018 V5	Trujillo-Sheppard	26.83	0.475	8.961	4.71	10.58	8.5	2018/10/03	2045	MPC · JPL
P/2018 VN₂	Leonard	8.19	0.479	4.0639	2.1172	18.147	16.4	2018/06/06	2026	MPC · JPL
P/2018 Y2	Africano	20.44	0.4791	7.4765	3.8946	11.687	11	2019/01/02	2039	MPC · JPL
P/2019 A1	PANSTARRS	11.62	0.5689	5.1307	2.2117	13.744	13.7	2018/10/11	2030	MPC · JPL
P/2019 A2	ATLAS	13.73	0.3820	5.7331	3.543	14.856	10.8	2018/11/21	2032	MPC · JPL
P/2019 A3	PANSTARRS	5.58	0.2648	3.1471	2.3134	15.366	14.9	2018/08/01	2024	MPC · JPL
P/2019 A4	PANSTARRS	4.23	0.0896	2.6135	2.3794	13.3190	15.4	2018/12/05	2023	MPC · JPL
P/2019 A6	Lemmon - PANSTARRS	12.45	0.6392	5.3725	1.9385	33.2283	14.5	2018/08/29	2031	MPC · JPL
P/2019 A8	PANSTARRS	6.14	0.4387	3.3544	1.8828	2.9667	13.6	2018/09/02	2024	MPC · JPL
P/2019 B2	Groeller	7.56	0.3729	3.8534	2.4165	16.8287	6.6	2019/06/08	2026	MPC · JPL
P/2019 F2	ATLAS	67.33	0.8651	16.5508	2.2328	19.1874	6.2	2019/09/08	2086	MPC · JPL
P/2019 GG₂₁	PANSTARRS	20.36	0.4720	7.4553	3.9365	6.0898	15.0	2019/05/08	2039	MPC · JPL
P/2019 LD2	ATLAS	12.17	0.1346	5.2898	4.5780	11.5587	12.2	2020/04/07	2032	MPC · JPL
P/2019 LM₄	Palomar	13.67	0.5852	5.718	2.3716	36.3948	13.4	2019/06/18	2033	MPC · JPL
P/2019 M2	ATLAS	5.26	0.6485	3.026	1.0634	12.2820	21.2	2019/06/22	2024	MPC · JPL
P/2019 S2	PANSTARRS	10.30	0.2067	4.733	3.7553	10.4730	13.1	2019/02/20	2029	MPC · JPL
P/2019 S3	PANSTARRS	6.31	0.4706	3.413	1.8067	8.692	17.9	2019/08/26	2025	MPC · JPL
P/2019 T6	PANSTARRS	12.74	0.6235	5.454	2.0534	18.7574	15.7	2019/11/08	2032	MPC · JPL
P/2019 U4	PANSTARRS	6.60	0.4752	3.520	1.8471	11.6923	18.6	2019/09/18	2026	MPC · JPL
P/2019 W1	PANSTARRS	9.71	0.2660	4.550	3.3399	23.4619	13.2	2019/05/07	2029	MPC · JPL
P/2019 X1	Pruyne	15.34	0.3026	6.174	4.3055	10.2465	10.3	2019/07/20	2034	MPC · JPL
P/2019 X2	PANSTARRS	6.95	0.4993	3.643	1.8241	15.8816	18.1	2019/12/09	2026	MPC · JPL
P/2019 Y3	Catalina	5.19	0.6956	2.996	0.91196	24.634	19.2	2019/12/13	2025	MPC · JPL
P/2020 G1	Pimentel	6.84	0.8596	3.603	0.5058	18.4727	18.7	2020/03/17	2027	MPC · JPL
P/2020 K9	Lemmon-PANSTARRS	8.62	0.3221	4.204	2.8495	23.2026	12.3	2021/02/12	2029	MPC · JPL
P/2020 M1	PANSTARRS	11.47	0.4770	5.087	2.6609	8.6328	10.1	2019/12/21	2031	MPC · JPL
P/2020 MK4	PANSTARRS	15.25	0.0205	6.150	6.023	6.691	7.6	2015/06/15	2030	MPC · JPL
P/2020 O3	PANSTARRS	10.07	0.1061	4.662	4.1674	8.4428	12.3	2021/01/26	2031	MPC · JPL
P/2020 P4-B		too uncertain to determine	0.9092	1.020	0.0926	28.1473	16.2	2020/08/08		MPC · JPL
P/2020 P4-C		too uncertain to determine	0.9394	1.391	0.0842	37.5593	15.6	2020/08/06		MPC · JPL
P/2020 Q2	PANSTARRS	36.10	0.5055	10.923	3.3100	5.4018	10.9	2020/02/07	2056	MPC · JPL
P/2020 R5	PANSTARRS	11.11	0.3145	4.9788	3.4130	11.4543	7.5	2020/05/28	2031	MPC · JPL
P/2020 S1	PANSTARRS	14.63	0.5072	59.811	2.9473	13.7349	17.5	2021/01/16	2038	MPC · JPL
P/2020 S5	PANSTARRS	8.15	0.3383	4.0482	2.6787	12.3542	14.7	2020/08/08	2028	MPC · JPL
P/2020 S7	PANSTARRS	11.26	0.4106	5.0238	2.9610	16.0922	14.6	2020/11/18	2032	MPC · JPL
P/2020 T3	PANSTARRS	6.60	0.5915	3.5168	1.4366	7.296	13.2	2021/01/20	2027	MPC · JPL
P/2020 U2	PANSTARRS	7.34	0.5105	3.777	1.849	6.421	9.2	2020/12/25	2028	MPC · JPL
P/2020 W1	Rankin	19.29	0.2649	7.193	5.288	10.792	10.4	2020/04/04	2039	MPC · JPL
P/2020 X1	ATLAS	9.61	0.3641	4.5186	2.873	31.6672	12.5	2020/07/21	2030	MPC · JPL
P/2020 X2	ATLAS	66.29	0.7663	16.3789	3.829	18.1917	10.5	2020/11/15	2087	MPC · JPL
P/2021 A5	PANSTARRS	5.32	0.1398	3.047	2.6209	18.188	15.0	2020/11/11	2026	MPC · JPL
P/2021 L2	Leonard	8.16	0.5218	4.053	1.939	21.069	15.8	2021/07/24	2029	MPC · JPL
P/2021 N1	ZTF	5.84	0.6768	2.977	0.962	11.506	17.8	2021/06/06	2026	MPC · JPL
P/2021 N2	Fuls	18.26	0.4524	6.933	3.797	13.063	8.6	2021/11/13	2039	MPC · JPL
P/2021 P3	PANSTARRS	9.298	0.3405	4.4216	2.916	27.156	4.9	2021/05/31	2030	MPC · JPL
P/2021 PE20	ATLAS	7.251	0.671	3.746	1.233	20.018	16.54	2021/06/07	2028	MPC · JPL
P/2021 Q5	ATLAS	5.955	0.6242	3.285	1.235	10.734	15.8	2021/08/30	2027	MPC · JPL
P/2021 R3	PANSTARRS	7.35	0.3319	3.7804	2.526	19.933	18.2	2021/05/27	2028	MPC · JPL
P/2021 R4	Wierzchos	13.32	0.5862	5.6204	2.326	21.040	16.3	2021/10/13	2034	MPC · JPL
P/2021 R5	Rankin	10.51	0.3076	4.7987	3.323	7.852	7.3	2022/01/11	2032	MPC · JPL
P/2021 R6	Groeller	15.716	0.5932	6.274	2.552	34.926	14.9	2021/10/31	2037	MPC · JPL
P/2021 R8	Sheppard	5.24	0.2940	3.019	2.131	2.203	18.6	2021/10/07	2027	MPC · JPL
P/2021 U3	Attard-Maury	8.587	0.5500	4.193	1.887	69.966	16.8	2021/10/24	2030	MPC · JPL
P/2022 B1	Wierzchos	12.77	0.6528	5.463	1.897	10.991	9.8	2022/02/25	2034	MPC · JPL
P/2022 BV₉	Lemmon	9.10	0.2350	4.358	3.334	11.935	13.67	2020/08/23	2029	MPC · JPL
P/2022 C1	PANSTARRS	19.38	0.4476	7.215	3.986	4.762	12.4	2021/11/04	2041	MPC · JPL
P/2022 C2	PANSTARRS	14.88	0.4428	6.049	3.370	9.980	7.2	2022/08/06	2037	MPC · JPL
P/2022 C3	PANSTARRS	30.01	0.5470	9.656	4.374	12.816	7.1	2022/07/01	2052	MPC · JPL
P/2022 D1	PANSTARRS	20.14	0.5470	7.401	3.353	44.064	15.9	2021/08/28	2041	MPC · JPL
P/2022 L3	ATLAS	16.63	0.6285	6.514	2.420	21.540	13.6	2022/10/29	2039	MPC · JPL
P/2022 M1	LONEOS - PANSTARRS	10.81	0.5784	4.890	2.061	7.027	15.9	2022/08/02	2033	MPC · JPL
P/2022 O2	PANSTARRS	15.86	0.7217	6.313	1.757	9.426	13.5	2023/01/07	2038	MPC · JPL
P/2022 P2	ZTF	9.50	0.5581	4.486	1.982	12.443	5.9	2022/07/10	2032	MPC · JPL
P/2022 R1	PANSTARRS	19.19	0.5023	7.167	3.567	7.408	7.4	2023/10/13	2043	MPC · JPL
P/2022 R4	PANSTARRS	7.51	0.4904	3.837	1.956	21.022	18.5	2022/07/10	2030	MPC · JPL
P/2022 R5	PANSTARRS	5.38	0.196	3.071	2.470	15.292	15.8	2022/05/27	2027	MPC · JPL
P/2022 S1	PANSTARRS	16.23	0.508	6.410	3.151	34.582	13.2	2022/08/19	2038	MPC · JPL
P/2022 W1	Rankin	18.39	0.517	6.968	3.368	13.467	15.4	2022/09/15	2041	MPC · JPL
P/2023 B1	PANSTARRS	18.72	0.129	7.049	6.141	14.589	5.9	2023/04/26	2042	MPC · JPL
P/2023 B3	PANSTARRS	9.68	0.123	4.543	3.983	9.163	14.7	2020/09/02	2032	MPC · JPL
P/2023 M1	PANSTARRS	17.96	0.588	6.857	2.826	12.290	7.5	2023/12/14	2041	MPC · JPL
P/2023 M2	PANSTARRS	13.12	0.369	5.562	3.508	19.725	11.9	2023/07/25	2036	MPC · JPL
P/2023 M4	PANSTARRS	12.73	0.279	5.453	3.929	7.592	11.0	2022/04/15	2035	MPC · JPL
P/2023 S1		7.57	0.321	3.856	2.618	9.149	7.1	2025/02/22	2032	MPC · JPL
P/2023 T1	PANSTARRS	8.72	0.335	4.238	2.817	6.606	6.1	2024/05/22	2033	MPC · JPL
P/2023 V2	PANSTARRS	19.59	0.573	7.267	3.104	9.878	7.6	2024/02/04	2043	MPC · JPL
P/2023 V6	PANSTARRS	12.38	0.181	5.5351	4.384	3.977	11.6	2022/12/21	2035	MPC · JPL
P/2023 X3	PANSTARRS	8.76	0.287	4.251	3.030	4.483	14.6	2024/04/21	2033	MPC · JPL
P/2023 Y1	Gibbs	7.26	0.445	3.728	2.080	6.384	16.2	2023/11/29	2031	MPC · JPL
P/2023 Y2	Gibbs	7.25	0.392	3.744	2.276	6.992	11.9	2023/08/09	2030	MPC · JPL
P/2024 F1	PANSTARRS	6.39	0.460	3.442	1.860	7.006	16.5	2023/10/25	2030	MPC · JPL

References

^ ^a ^b "Cometary Designation System". Minor Planet Center. Retrieved 2011-07-03.
^ "MPEC 2018-H54 : 2. A/ Objects". Minor Planet Center. 20 April 2018. Retrieved 12 August 2018.
^ Comet names and designations
^ Meyer, Maik. "Unknown comet of 11 April 1991". comethunter.de. Retrieved 18 January 2016.

External links

Minor Planet Center Periodic Comet Numbers
Cometography.com Periodic Comets
Seiichi Yoshida's Comet Catalog
MPC: Dates of Last Observation of Comets (periodic and non-periodic)

[designation-1] "Cometary Designation System". Minor Planet Center. Retrieved 2011-07-03.

[MPC-A/-2] "MPEC 2018-H54 : 2. A/ Objects". Minor Planet Center. 20 April 2018. Retrieved 12 August 2018.

[deslist-3] Comet names and designations

[X1991G1-4] Meyer, Maik. "Unknown comet of 11 April 1991". comethunter.de. Retrieved 18 January 2016.

[1]

[2]

[3]

[4]

List of Halley-type comets

List of unnumbered Jupiter-Family comets

See also

References

External links