Hickson Compact Group

Hickson Compact Group
Alternative names	Hickson Galaxy Groups
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A Hickson Compact Group (abbreviation: HCG) is a collection of galaxies designated as published by Paul Hickson in 1982.^[1]

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The most famous group on Hickson's list of 100 objects is HCG 92, Stephan's Quintet.

[1]

HCG	Right ascension^[3]	Declination^[3]	Galaxy count^[4]	Members	Notes
1	00^h 26.0^m	+25° 43′	4	UGC 248, PGC 1625, PGC 1614, PGC 1618
2	00^h 31^m 24^s	+08° 26.8′	4	UGC 312, Markarian 552, UGC 314, UGC 315
3	00^h 34^m 11^s	−07° 35.6′	4	MCG-01-02-032, PGC 2064, PGC 2059, PGC 2043
4	00^h 34^m 15.3^s	−21° 26′ 52″	5	ESO 540-1, ESO 540-2, PGC 2051, PGC 2057, PGC 2040
5	00^h 38^m 54^s	+07° 03.8′	4	NGC 190, NGC 190S, MCG+01-02-042, PGC 2326
6	00^h 39^m 10^s	−08° 23.7′	4	PGC 2347, PGC 2350, PGC 2351, PGC 2353
7	00^h 39^m 15.9^s	+00° 53′ 17″	4	NGC 192, NGC 196, NGC 197, NGC 201	Contains three spirals and one lenticular galaxy^[5]
8	00^h 49^m 37^s	+23° 34.8′	4	MCG+04-03-008, PGC 2888, PGC 2890, PGC 2892
9	00^h 54^m 18^s	−23° 33.1′	4	MCG-04-03-027, MCG-04-03-028, PGC 3196, PGC 3200
10	01^h 26^m 24.5^s	+34° 42′ 51″	4	NGC 536, NGC 529, NGC 531, NGC 542
11	01^h 26.6^m	−23° 13′	4	ESO 476-8, MCG-04-04-010, PGC 5357, PGC 5381
12	01^h 27^m 33.7^s	−04° 40′ 14″	5	MCG-01-04-052, PGC 5432, PGC 5439, PGC 5443, PGC 5445
13	01^h 32.4^m	−07° 52′	5	MCG-01-05-002, MCG-01-05-003, MCG-01-05-004, PGC 5728, PGC 5741
14	01^h 59^m 47^s	−07° 01.7′	4	MCG-01-06-017, MCG-01-06-019, MCG-01-06-020, MCG-01-06-022
15	02^h 07^m 39.0^s	+02° 08′ 18″	6	UGC 1617, UGC 1618, UGC 1618 B, UGC 1620, UGC 1624, MCG+00-06-033
16	02^h 09^m 31.3^s	−10° 09′ 31″	4	NGC 835, NGC 833, NGC 838, NGC 839	Contains three starburst galaxies, two LINER galaxies, and a Seyfert 2 galaxy^[6]
17	02^h 14^m 04.5^s	+13° 18′ 54″	5	PGC 8558, PGC 8559, PGC 8560, PGC 8561, PGC 8564
18	02^h 39^m 06.10^s	+18° 23′ 02.0″	4	MCG+03-07-038, UGC 2140
19	02^h 42^m 45^s	−12° 24.7′	4	MCG-02-07-073, MCG-02-07-074, MCG-02-07-075, PGC 10269
20	02^h 44^m 14^s	+26° 06.2′	6	PGC 10364, PGC 10365, PGC 10366, PGC 10367, PGC 10368, PGC 10369
21	02^h 45^m 16.9^s	−17° 37′ 35″	5	NGC 1099, NGC 1100, NGC 1098, NGC 1091, NGC 1092
22	03^h 03^m 31^s	−15° 40.5′	5	NGC 1199, NGC 1190, NGC 1189, NGC 1191, NGC 1192
23	03^h 07^m 06^s	−09° 35.1′	5	NGC 1214, NGC 1215, NGC 1216, MCG-02-08-054
24	03^h 20.3^m	−10° 51′	5	MCG-02-09-031, MCG-02-09-032, PGC 12472, PGC 12492, PGC 12489
25	03^h 20^m 43.7^s	−01° 03′ 07″	7	UGC 2690, UGC 2691, PGC 12524, PGC 12530, PGC 12533, PGC 12538, PGC 12550
26	03^h 21^m 54^s	−13° 38.8′	7	MCG-02-09-035, HCG 26b, PGC 12604, PGC 12605, PGC 12610, PGC 12613, PGC 12615
27	04^h 19.4^m	−11° 42′	6	PGC 14861, PGC 14862, PGC 14863, PGC 14866, PGC 14870, PGC 14873
28	04^h 27^m 19^s	−10° 19.0′	4	PGC 15135, PGC 15136, PGC 15141, HCGd 28d
29	04^h 34^m 45^s	−30° 32.8′	4	PGC 15559, PGC 15560, PGC 15561, PGC 15562
30	04^h 36.5^m	−02° 49′	4	MCG+00-12-051, MCG+00-12-054, PGC 15624, PGC 15636
31	05^h 01^m 37^s	−04° 15.4′	4	NGC 1741A, PGC 16570, NGC 1741B, PGC 16571
32	05^h 01.7^m	−15° 25′	4	MCG-03-13-053, PGC 16578, PGC 16584, PGC 16587
33	05^h 10^m 47.6^s	+18° 01′ 11″	4	PGC 16863, PGC 16866, PGC 16867, PGC 16871
34	05^h 21^m 47^s	+06° 40.6′	4	NGC 1875, VV 169b, VV 169c, VV 169d
35	08^h 45^m 20.71^s	+44° 32′ 23.1″	6	PGC 24596, PGC 24597, PGC 24598, PGC 24599, PGC 24600, PGC 24601
36	09^h 09^m 24^s	+15° 47.7′	4	IC 528, IC 528C, PGC 25782, PGC 25791
37	09^h 13^m 35.6^s	+30° 00′ 51″	5	NGC 2783, UGC 4856, MCG+05-22-016, MCG+05-22-018, MCG+05-22-020,
38	09^h 27.6^m	+12° 16′	4	MCG+02-24-012, UGC 5044, MCG+02-24-014, PGC 26830
39	09^h 29^m 28^s	−01° 20.7′	4	PGC 26925, PGC 26926, PGC 26929, PGC 26931
40	09^h 38^m 54^s	−04° 51.1′	6	MCG-01-25-008, MCG-01-25-009, MCG-01-25-010, MCG-01-25-011, MCG-01-25-012, PGC 27517	also known as Arp 321
41	09^h 57^m 40^s	+45° 14.4′	4	UGC 5345, UGC 5346, MCG+08-18-046, PGC 28784
42	10^h 00^m 13.1^s	−19° 38′ 24″	4	NGC 3091, NGC 3096, MCG-03-26-006, PGC 28926	also known as NGC 3091 Group
43	10^h 11.2^m	−00° 01′	6	Z 8-59, Z 8-61, Z 8-62, PGC 29666, PGC 29668, PGC 29673
44	10^h 18^m 00^s	+21° 48.7′	4	NGC 3185, NGC 3187, NGC 3190, NGC 3193
45	10^h 19.2^m	+59° 06′	4	UGC 5564, PGC 30137, PGC 30143, PGC 30156
46	10^h 22.0^m	+17° 48′	4	MCG+03-27-005, MCG+03-27-007, MCG+03-27-008, MCG+03-27-009
47	10^h 25^m 48^s	+13° 43.9′	4	UGC 5644, MCG+02-27-013, MCG+02-27-014, MCG+02-27-015
48	10^h 37^m 45.6^s	−27° 04′ 50″	4	IC 2597, ESO 501-59, PGC 31577, PGC 31580
49	10^h 56^m 36^s	+67° 10.8′	4	PGC 32890, PGC 32893, PGC 32895, PGC 32899
50	11^h 17^m 06^s	+54° 55.1′	5	PGC 34444, PGC 34447, PGC 34448, PGC 34452, PGC 34453
51	11^h 22^m 21.6^s	+24° 19′ 41″	7	NGC 3651, NGC 3653, IC 2759, MCG+04-27-030, MCG+04-27-027, PGC 34899, PGC 34901
52	11^h 26.3^m	+21° 05′	4	MCG+04-27-036, PGC 35178, PGC 35179, PGC 35184,
53	11^h 28^m 58^s	+20° 46.6′	4	NGC 3697, Mrk 1296, MCG+04-27-044, PGC 35381
54	11^h 29^m 15^s	+20° 34.7′	4	IC 700
55	11^h 32^m 07^s	+70° 48.7′	5	PGC 35573, PGC 35574, PGC 35575, 2MASX J11320571+7048236, HCG 55e
56	11^h 32^m 32^s	+52° 56.9′	5	MCG+09-19-113, Mrk 176, PGC 35609, PGC 35615, PGC 35618	south of NGC 3718 and a popular target for amateur astronomers
57	11^h 37^m 50.5^s	+21° 59′ 06″	8	NGC 3753, NGC 3746, NGC 3750, NGC 3754, NGC 3748, NGC 3751, NGC 3745, PGC 36010	Also known as Copeland Septet
58	11^h 42^m 09.4^s	+10° 16′ 30″	5	NGC 3817, NGC 3819, NGC 3820, NGC 3822, NGC 3825,
59	11^h 48^m 27^s	+12° 43.0′	5	IC 737, IC 736, PGC 36871, PGC 36867, PGC 36851
60	12^h 03^m 05^s	+51° 41.6′	4	MCG+09-20-071, PGC 38053, PGC 38064, PGC 38072
61	12^h 12^m 24^s	+29° 10.7′	4	NGC 4169, NGC 4170, NGC 4174, NGC 4175
62	12^h 53^m 05.6^s	−09° 12′ 21″	4	NGC 4759, NGC 4761, NGC 4764, NGC 4776, NGC 4778
63	13^h 02.2^m	−32° 46′	4	ESO 381-50, ESO 443-37, PGC 44959, PGC 44979
64	13^h 25^m 43^s	−03° 51.5′	4	PGC 46971, PGC 46972, PGC 46975, PGC 46977,
65	13^h 29^m 53^s	−29° 30.0′	5	ESO 444-55, PGC 47401, PGC 47403, PGC 47406, PGC 47407
66	13^h 38^m 33^s	+57° 18.3′	4	MCG+10-19-104, PGC 48220, PGC 48231, PGC 48222
67	13^h 49^m 03.5^s	−07° 12′ 20″	4	NGC 5306, MCG-01-35-013, MCG-01-35-015, PGC 49036
68	13^h 53^m 40.9^s	+40° 19′ 07″	5	NGC 5350, NGC 5353, NGC 5354, NGC 5355, NGC 5358
69	13^h 55^m 31^s	+25° 03.8′	4	UGC 8842, Z 132-48, MCG+04-33-028, PGC 49499	HCG 69 is surrounded by other galaxies, such as IC 4343, IC 4344, IC 4345, IC 4346, IC 4348 and IC 4349
70	14^h 04^m 07.4^s	+33° 19′ 10″	7	IC 4369, IC 4370, IC 4371, UGC 8990, MCG+06-31-057, MCG+06-31-065, PGC 50123
71	14^h 11.1^m	+25° 29′	4	NGC 5008, IC 4382, PGC 50640, PGC 50641
72	14^h 47^m 55^s	+19° 03.6′	6	UGC 9532, MCG+03-38-017, MCG+03-38-018, MCG+03-38-018, MCG+03-38-020, MCG+03-38-022
73	15^h 02^m 40.1^s	+23° 21′ 13″	5	NGC 5829, IC 4526, PGC 53702, PGC 53703, PGC 53720
74	15^h 19^m 28^s	+20° 53.6′	5	NGC 5910, MCG+04-36-036, PGC 54692, PGC 54694, PGC 54697
75	15^h 21^m 37.0^s	+21° 10′ 50″	6	PGC 54802, PGC 54803, PGC 54804, PGC 54818, PGC 54824, PGC 54827
76	15^h 31.7^m	+07° 18′	5	NGC 5941, NGC 5942, NGC 5944, MCG+01-40-003, PGC 55313, PGC 55325
77	15^h 49^m 17^s	+21° 49.7′	4	UGC 10049, PGC 56121, PGC 56122, PGC 56125
78	15^h 48.5^m	+68° 12′	4	UGC 10057, MCG+11-19-016, PGC 56086, PGC 56095
79	15^h 59^m 13^s	+20° 45.1′	5	NGC 6027, NGC 6027a, NGC 6027b, NGC 6027c, NGC 6027d, NGC 6027e (tidal tail of NGC 6027)	Also known as UGC 10116, VV 115, Seyfert's Sextet or Serpens Sextet. Contains 2 lenticular galaxies, 3 spiral galaxies (one barred spiral) and a tidal tail.
80	15^h 59^m 12^s	+65° 13.6′	4	PGC 56572, PGC 56577, PGC 56588, PGC 56590
81	16^h 18^m 13^s	+12° 47.6′	4	SDSS J161813.66+124811.2, PGC 57774, PGC 57777, PGC 57779
82	16^h 28^m 22.1^s	+32° 49′ 25″	4	NGC 6161, NGC 6162, NGC 6163, PGC 58231
83	16^h 35^m 40.9^s	+06° 16′ 12″	5	PGC 58559, PGC 58561, PGC 58562, PGC 58565, PGC 58569
84	16^h 44^m 08^s	+77° 50.2′	6	PGC 58856, PGC 58861, PGC 58873, PGC 58877, PGC 58881, PGC 58884
85	18^h 50^m 22.3^s	+73° 21′ 00″	4	PGC 62476, PGC 62477, PGC 62478, PGC 62484,
86	19^h 51^m 59.2^s	−30° 49′ 34″	4	ESO 461-7, MCG-05-47-001, MCG-05-47-002, MCG-05-47-003,
87	20^h 48^m 11^s	−19° 50.4′	4	ESO 597-36, PGC 65409, ESO 597-35, PGC 65414	One of the most compact groups, hosting two active galactic nuclei and a starburst among its three members, all of which show signs of interaction
88	20^h 52.4^m	−05° 45′	4	NGC 6978, NGC 6976, NGC 6977, MCG-01-53-014
89	21^h 20.2^m	−03° 54′	4	MCG-01-54-012, PGC 66574, PGC 66575, PGC 66580
90	22^h 02^m 06.3^s	−31° 55′ 48″	4	NGC 7173, NGC 7174, NGC 7176, and NGC 7172	also called NGC 7176 Group
91	22^h 09^m 00.8^s	−27° 47′ 36″	4	NGC 7214, ESO 467-15, ESO 467-13, HCG 91d	also called VV 700 Group
92	22^h 35^m 57.5^s	+33° 57′ 36″	5	NGC 7317, NGC 7318A, NGC 7318B, NGC 7319, NGC 7320C	Also called Stephan's Quintet, one galaxy of the sixsome, NGC 7320, is not part of the HCG but is a foreground galaxy in front of the five galaxies in the HCG. When discovered, two of the galaxies in the grouping were considered to be one galaxy, NGC 7318.
93	23^h 15^m 12.2^s	+18° 59′ 31″	5	NGC 7547, NGC 7549, NGC 7550, NGC 7553, NGC 7558
94	23^h 17^m 16.5^s	+18° 43′ 11″	7	NGC 7578, UGC 12477, PGC 70936, PGC 70937, PGC 70939, PGC 70941, PGC 70943,
95	23^h 19^m 32^s	+09° 29.5′	4	NGC 7609, MCG+01-59-046, PGC 71077, PGC 71080	also called Arp 150 Group and NGC 7609 Group
96	23^h 27^m 58^s	+08° 46.4′	4	NGC 7674, NGC 7674A, NGC 7675, PGC 71507
97	23^h 47^m 24.0^s	−02° 19′ 08″	5	IC 5351, IC 5352, IC 5356, IC 5357, IC 5359
98	23^h 54.2^m	+00° 22′	4	NGC 7783, MCG+00-60-059, PGC 72810, NGC 7783 C	In 2019 a giant tidal tail and a large envelope was discovered around HCG 98 with the Wise Observatory^[7]
99	00^h 00^m 43^s	+28° 23.7′	4	UGC 12897, UGC 12899, MCG+05-01-021, PGC 60, PGC 57
100	00^h 01.3^m	+13° 07′	4	NGC 7803, Mrk 934, MCG+02-01-009, MCG+02-01-010

Hickson Compact Group

Hickson Compact Groups

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References

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