List of numbered comets

This is a list of periodic comets that were Astronomical [naming conventions#Comets|numbered] by the Minor [Planet Center] after having been observed on at least two occasions. Their orbital periods vary from 3.2 to 366 years., there are 513 numbered comets. There are 440 Jupiter-family comets, 50 Encke-type comets, 15 Halley-type comets, five Chiron-type comets, and one long-period comet. 79 bodies are also near-Earth comets. In addition, eight numbered comets are principally classified as minor planets – five main-belt comets, two centaurs, and one Apollo asteroid – and display characteristics of both an asteroid and a comet.
Occasionally, comets will break up into multiple chunks, as volatiles coming off the comet and rotational forces may cause it to break into two or more pieces. An extreme example of this is 73P/Schwassmann–Wachmann, which broke into over 50 pieces during its 1995 perihelion.

Multiples

51P/Harrington

This is a list of with all its cometary fragments listed at JPL's SBDB .

Comet designation	Period	e	a	i	J_Tiss	M1	M2	Diam.	Ref
51P/Harrington	7.16	0.542	3.714	5.424	2.814	11.8	15.1	4.8 km
51P/Harrington-A	6.78	0.562	3.581	8.655	2.810	10.	15.	4.8 km
51P/Harrington-D	7.16	0.542	3.714	5.425	2.814	8.6	14.7	–

57P/du Toit–Neujmin–Delporte

This is a list of with all its cometary fragments listed at JPL's SBDB .

Comet designation	Period	e	a	i	J_Tiss	M1	M2	Diam.	Ref
57P/duToit-Neujmin-Delporte	6.42	0.499	3.453	2.848	2.917	13.9	?	–
57P/duToit-Neujmin-Delporte-A	6.41	0.499	3.452	2.845	2.917	8.5	16.	–

[|73P/Schwassmann–Wachmann]

In 1995, comet 73P/Schwassmann–Wachmann, broke up into several pieces and as of its last perihelion date, the pieces numbered at least 67 with 73P/Schwassmann–Wachmann C as the presumed original nucleus. Because of the enormous number, the pieces of it have been compiled into a separate list.
This is a list of with all its cometary fragments listed at JPL's SBDB .

Comet designation	Period	e	a	i	J_Tiss	M1	M2	Diam.	Ref
73P/Schwassmann–Wachmann 3	5.44	0.686	3.092	11.237	2.784	12.	15.	–
73P/Schwassmann–Wachmann 3-B	5.36	0.693	3.062	11.397	2.783	15.2	?	–
73P/Schwassmann–Wachmann 3-C	5.36	0.692	3.063	11.379	2.784	13.2	?	–
73P/Schwassmann–Wachmann 3-E	5.36	0.694	3.062	11.406	2.782	10.4	?	–
73P/Schwassmann–Wachmann 3-G	5.36	0.693	3.063	11.390	2.783	16.8	18.0	–
73P/Schwassmann–Wachmann 3-H	5.37	0.694	3.065	11.391	2.782	20.2	21.7	–
73P/Schwassmann–Wachmann 3-J	5.31	0.692	3.044	11.380	2.793	–	–	–
73P/Schwassmann–Wachmann 3-K	5.36	0.694	3.064	11.391	2.782	20.9	?	–
73P/Schwassmann–Wachmann 3-L	5.40	0.695	3.076	11.399	2.776	20.9	21.7	–
73P/Schwassmann–Wachmann 3-M	5.37	0.694	3.068	11.394	2.780	21.0	21.8	–
73P/Schwassmann–Wachmann 3-N	5.33	0.692	3.052	11.381	2.788	20.4	21.2	–
73P/Schwassmann–Wachmann 3-P	5.42	0.696	3.085	11.405	2.771	–	–	–
73P/Schwassmann–Wachmann 3-Q	5.51	0.699	3.118	11.419	2.754	21.5	?	–
73P/Schwassmann–Wachmann 3-R	5.38	0.694	3.070	11.395	2.779	19.2	20.0	–
73P/Schwassmann–Wachmann 3-S	6.09	0.693	3.334	11.048	2.693	21.1	?	–
73P/Schwassmann–Wachmann 3-T	5.89	0.712	3.261	11.512	2.685	–	–	–
73P/Schwassmann–Wachmann 3-U	5.26	0.689	3.024	11.360	2.803	–	–	–
73P/Schwassmann–Wachmann 3-V	5.13	0.693	2.976	11.652	2.816	–	–	–
73P/Schwassmann–Wachmann 3-W	5.47	0.698	3.105	11.418	2.761	–	–	–
73P/Schwassmann–Wachmann 3-X	5.40	0.695	3.076	11.399	2.776	21.7	?	–
73P/Schwassmann–Wachmann 3-Y	6.13	0.720	3.348	11.562	2.646	–	–	–
73P/Schwassmann–Wachmann 3-Z	5.38	0.693	3.072	11.349	2.779	–	–	–
73P/Schwassmann–Wachmann 3-AA	5.04	0.681	2.941	11.295	2.849	–	–	–
73P/Schwassmann–Wachmann 3-AB	5.31	0.691	3.042	11.373	2.794	–	–	–
73P/Schwassmann–Wachmann 3-AC	5.41	0.695	3.083	11.405	2.772	–	–	–
73P/Schwassmann–Wachmann 3-AD	5.37	0.693	3.068	11.368	2.781	–	–	–
73P/Schwassmann–Wachmann 3-AE	5.45	0.697	3.096	11.415	2.765	–	–	–
73P/Schwassmann–Wachmann 3-AF	4.96	0.676	2.908	11.240	2.870	–	–	–
73P/Schwassmann–Wachmann 3-AG	5.42	0.696	3.087	11.408	2.770	–	–	–
73P/Schwassmann–Wachmann 3-AH	5.39	0.693	3.075	11.331	2.778	–	–	–
73P/Schwassmann–Wachmann 3-AI	5.49	0.698	3.111	11.431	2.757	21.3	?	–
73P/Schwassmann–Wachmann 3-AJ	10.14	0.800	4.685	12.149	2.223	21.3	?	–
73P/Schwassmann–Wachmann 3-AK	5.35	0.693	3.058	11.429	2.784	18.8	?	–
73P/Schwassmann–Wachmann 3-AL	5.53	0.700	3.128	11.444	2.749	–	–	–
73P/Schwassmann–Wachmann 3-AM	5.29	0.693	3.036	11.544	2.793	–	–	–
73P/Schwassmann–Wachmann 3-AN	5.40	0.695	3.076	11.405	2.776	–	–	–
73P/Schwassmann–Wachmann 3-AO	5.38	0.694	3.072	11.326	2.779	–	–	–
73P/Schwassmann–Wachmann 3-AP	5.58	0.701	3.144	11.466	2.741	20.3	21.2	–
73P/Schwassmann–Wachmann 3-AQ	5.43	0.696	3.088	11.414	2.770	17.5	18.5	–
73P/Schwassmann–Wachmann 3-AR	5.43	0.696	3.087	11.407	2.770	21.8	?	–
73P/Schwassmann–Wachmann 3-AS	5.56	0.701	3.140	11.461	2.743	20.3	22.3	–
73P/Schwassmann–Wachmann 3-AT	5.20	0.687	3.001	11.335	2.816	21.0	?	–
73P/Schwassmann–Wachmann 3-AU	5.35	0.693	3.058	11.382	2.785	–	–	–
73P/Schwassmann–Wachmann 3-AV	5.36	0.693	3.062	11.395	2.783	–	–	–
73P/Schwassmann–Wachmann 3-AW	4.97	0.677	2.914	11.240	2.866	–	–	–
73P/Schwassmann–Wachmann 3-AX	5.33	0.692	3.050	11.428	2.789	–	–	–
73P/Schwassmann–Wachmann 3-AY	4.92	0.675	2.894	11.226	2.877	–	–	–
73P/Schwassmann–Wachmann 3-AZ	4.92	0.675	2.894	11.221	2.877	–	–	–
73P/Schwassmann–Wachmann 3-BA	5.09	0.682	2.961	11.271	2.839	–	–	–
73P/Schwassmann–Wachmann 3-BB	5.11	0.682	2.968	11.190	2.836	–	–	–
73P/Schwassmann–Wachmann 3-BC	5.55	0.700	3.134	11.459	2.746	19.8	20.1	–
73P/Schwassmann–Wachmann 3-BD	5.14	0.682	2.979	10.975	2.832	–	–	–
73P/Schwassmann–Wachmann 3-BE	5.09	0.682	2.958	11.317	2.840	–	–	–
73P/Schwassmann–Wachmann 3-BF	5.17	0.686	2.989	11.322	2.823	–	–	–
73P/Schwassmann–Wachmann 3-BG	5.14	0.685	2.980	11.325	2.828	–	–	–
73P/Schwassmann–Wachmann 3-BH	5.09	0.682	2.959	11.289	2.839	–	–	–
73P/Schwassmann–Wachmann 3-BI	5.09	0.682	2.960	11.300	2.839	–	–	–
73P/Schwassmann–Wachmann 3-BJ	5.30	0.691	3.041	11.370	2.795	–	–	–
73P/Schwassmann–Wachmann 3-BK	5.31	0.692	3.045	11.371	2.792	23.7	?	–
73P/Schwassmann–Wachmann 3-BL	5.44	0.696	3.091	11.409	2.768	22.4	?	–
73P/Schwassmann–Wachmann 3-BM	5.09	0.682	2.959	11.294	2.839	–	–	–
73P/Schwassmann–Wachmann 3-BN	5.32	0.692	3.047	11.377	2.791	21.3	22.0	–
73P/Schwassmann–Wachmann 3-BO	5.32	0.692	3.048	11.376	2.791	22.9	24.5	–
73P/Schwassmann–Wachmann 3-BP	5.09	0.682	2.960	11.291	2.839	–	–	–
73P/Schwassmann–Wachmann 3-BQ	5.34	0.692	3.054	11.388	2.788	20.8	23.4	–
73P/Schwassmann–Wachmann 3-BR	5.16	0.685	2.984	11.319	2.825	–	–	–
73P/Schwassmann–Wachmann 3-BS	5.50	0.699	3.115	11.444	2.756	–	–	–
73P/Schwassmann–Wachmann 3-BT	5.44	0.686	3.092	11.238	2.784	13.3	?	–

101P/Chernykh

This is a list of with all its cometary fragments listed at JPL's SBDB .

Comet designation	Period	e	a	i	J_Tiss	M1	M2	Diam.	Ref
101P/Chernykh	13.91	0.594	5.785	5.080	2.590	11.7	14.0	5.6 km
101P/Chernykh-B	13.97	0.595	5.800	5.078	2.588	13.0	?	–

128P/Shoemaker–Holt

This is a list of with all its cometary fragments listed at JPL's SBDB .

Comet designation	Period	e	a	i	J_Tiss	M1	M2	Diam.	Ref
128P/Shoemaker–Holt 1	9.56	0.322	4.505	4.363	2.912	7.0	14.2	–
128P/Shoemaker-Holt 1-A	9.73	0.334	4.557	4.354	2.901	8.5	14.	–
128P/Shoemaker-Holt 1-B	9.51	0.321	4.489	4.362	2.913	5.6	16.7	4.6 km

141P/Machholz

This is a list of with all its cometary fragments listed at JPL's SBDB and CBAT.

Comet designation	Period	e	a	i	J_Tiss	M1	M2	Diam.	Ref
141P/Machholz 2	5.34	0.736	3.056	13.942	–	14.7	19.0	–
141P/Machholz 2-B	5.34	0.736	3.056	13.950	–	–	20.3	–
141P/Machholz 2-C	5.35	0.736	3.058	13.879	–	–	–	–
141P/Machholz 2-D	5.34	0.736	3.056	13.943	–	12.5	19.6	–
141P/Machholz 2-E	4.91	0.738	2.888	12.979	–	–	–	–
141P/Machholz 2-F	5.35	0.736	3.060	13.801	–	–	–	–
141P/Machholz 2-G	5.50	0.753	3.117	12.832	–	–	–	–

205P/Giacobini

This is a list of with all its cometary fragments listed at JPL's SBDB .

Comet designation	Period	e	a	i	J_Tiss	M1	M2	Diam.	Ref
205P/Giacobini	6.68	0.567	3.548	15.286	2.779	13.0	?	–
205P/Giacobini-A	6.66	0.569	3.539	15.305	2.779	12.0	15.7	–
205P/Giacobini-B	6.84	0.575	3.603	15.405	2.756	18.5	?	–
205P/Giacobini-C	6.66	0.569	3.540	15.309	2.779	–	–	–

213P/Van Ness

This is a list of with all its cometary fragments listed at JPL's SBDB .

Comet designation	Period	e	a	i	J_Tiss	M1	M2	Diam.	Ref
213P/Van Ness	6.34	0.382	3.426	10.266	2.994	11.0	14.1	–
213P/Van Ness-B	6.33	0.380	3.422	10.240	2.997	7.3	18.2	–

240P/NEAT

This is a list of with all its cometary fragments listed at JPL's SBDB .

Comet designation	Period	e	a	i	J_Tiss	M1	M2	Diam.	Ref
240P/NEAT	7.61	0.4498	3.868	23.52	2.758	11.8	13.1	2.665 km
240P/NEAT-B	7.58	0.4504	3.860	23.53	2.758	7.3	–	–

332P/Ikeya–Murakami

This is a list of with all its cometary fragments listed at JPL's SBDB .

Comet designation	Period	e	a	i	J_Tiss	M1	M2	Diam.	Ref
332P/Ikeya–Murakami	5.42	0.489	3.087	9.378	3.012	5.2	12.5	–
332P/Ikeya–Murakami-A	5.42	0.490	3.086	9.387	3.010	16.9	19.3	–
332P/Ikeya–Murakami-B	5.41	0.490	3.083	9.382	3.012	16.5	20.8	–
332P/Ikeya–Murakami-C	5.42	0.490	3.086	9.386	3.010	5.2	12.5	–
332P/Ikeya–Murakami-D	5.41	0.490	3.083	9.379	3.011	19.5	?	–
332P/Ikeya–Murakami-E	5.43	0.491	3.088	9.388	3.010	?	22.5	–
332P/Ikeya–Murakami-F	5.61	0.499	3.158	9.519	2.980	?	22.1	–
332P/Ikeya–Murakami-G	5.36	0.494	3.063	9.273	3.016	20.6	?	–
332P/Ikeya–Murakami-H	5.42	0.490	3.087	9.387	3.010	18.9	?	–
332P/Ikeya–Murakami-I	5.41	0.490	3.083	9.380	3.012	?	21.7	–