Astronomy:Hickson Compact Group

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Hickson Compact Group

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

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

Hickson Compact Groups

According to Hickson: “Most compact groups contain a high fraction of galaxies having morphological or kinematical peculiarities, nuclear radio and infrared emission, and starburst or active galactic nuclei (AGN) activity. They contain large quantities of diffuse gas and are dynamically dominated by dark matter. They most likely form as subsystems within looser associations and evolve by gravitational processes. Strong galaxy interactions result and merging is expected to lead to the ultimate demise of the group. Compact groups are surprisingly numerous, and may play a significant role in galaxy evolution.”[2]

List

Image HCG Right ascension[3] Declination[3] Galaxy count[4] Members Notes
HCG 1 legacy dr10.jpg 1  00h 26.0m +25° 43′ 4 UGC 248, PGC 1625, PGC 1614, PGC 1618
HCG 2 legacy dr10.jpg 2  00h 31m 24s +08° 26.8′ 4 UGC 312, Markarian 552, UGC 314, UGC 315
HCG 3 legacy dr10.jpg 3  00h 34m 11s −07° 35.6′ 4 MCG-01-02-032, PGC 2064, PGC 2059, PGC 2043
HCG 4 legacy dr10.jpg 4  00h 34m 15.3s −21° 26′ 52″ 5 ESO 540-1, ESO 540-2, PGC 2051, PGC 2057, PGC 2040
NGC190 - SDSS DR14.jpg 5  00h 38m 54s +07° 03.8′ 4 NGC 190, NGC 190S, MCG+01-02-042, PGC 2326
HCG 6 legacy dr10.jpg 6  00h 39m 10s −08° 23.7′ 4 PGC 2347, PGC 2350, PGC 2351, PGC 2353
HCG 7.jpg 7  00h 39m 15.9s +00° 53′ 17″ 4 NGC 192, NGC 196, NGC 197, NGC 201 Contains three spirals and one lenticular galaxy[5]
HCG 8 legacy dr10.jpg 8  00h 49m 37s +23° 34.8′ 4 MCG+04-03-008, PGC 2888, PGC 2890, PGC 2892
HCG 9 legacy dr10.jpg 9  00h 54m 18s −23° 33.1′ 4 MCG-04-03-027, MCG-04-03-028, PGC 3196, PGC 3200
N536s.jpg 10  01h 26m 24.5s +34° 42′ 51″ 4 NGC 536, NGC 529, NGC 531, NGC 542
HCG 11 legacy dr10.jpg 11  01h 26.6m −23° 13′ 4 ESO 476-8, MCG-04-04-010, PGC 5357, PGC 5381
HCG 12 legacy dr10.jpg 12  01h 27m 33.7s −04° 40′ 14″ 5 MCG-01-04-052, PGC 5432, PGC 5439, PGC 5443, PGC 5445
HCG 13 legacy dr10.jpg 13  01h 32.4m −07° 52′ 5 MCG-01-05-002, MCG-01-05-003, MCG-01-05-004, PGC 5728, PGC 5741
HCG 14 legacy dr10.jpg 14  01h 59m 47s −07° 01.7′ 4 MCG-01-06-017, MCG-01-06-019, MCG-01-06-020, MCG-01-06-022
HCG 15 legacy dr10.jpg 15  02h 07m 39.0s +02° 08′ 18″ 6 UGC 1617,UGC 1618, UGC 1618 B, UGC 1620, UGC 1624, MCG+00-06-033
NGC 833 NGC 835 NGC 838 NGC 839 legacy dr10.jpg 16  02h 09m 31.3s −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]
HCG 17 legacy dr10.jpg 17  02h 14m 04.5s +13° 18′ 54″ 5 PGC 8558, PGC 8559, PGC 8560, PGC 8561, PGC 8564
HCG 18 legacy dr10.jpg 18  02h 39m 06.10s +18° 23′ 02.0″ 4 MCG+03-07-038, UGC 2140
HCG 19 legacy dr10.jpg 19  02h 42m 45s −12° 24.7′ 4 MCG-02-07-073, MCG-02-07-074, MCG-02-07-075, PGC 10269
20  02h 44m 14s +26° 06.2′ 6 PGC 10364, PGC 10365, PGC 10366, PGC 10367, PGC 10368, PGC 10369
NGC 1098 NGC 1099 NGC 1100 legacy dr10.jpg 21  02h 45m 16.9s −17° 37′ 35″ 5 NGC 1099, NGC 1100, NGC 1098, NGC 1091, NGC 1092
HCG 22 legacy dr10.jpg 22  03h 03m 31s −15° 40.5′ 5 NGC 1199, NGC 1190, NGC 1189, NGC 1191, NGC 1192
HCG 23 legacy dr10.jpg 23  03h 07m 06s −09° 35.1′ 5 NGC 1214, NGC 1215, NGC 1216, MCG-02-08-054
HCG 24 legacy dr10.jpg 24  03h 20.3m −10° 51′ 5 MCG-02-09-031, MCG-02-09-032, PGC 12472, PGC 12492, PGC 12489
HCG 25 legacy dr10.jpg 25  03h 20m 43.7s −01° 03′ 07″ 7 UGC 2690, UGC 2691, PGC 12524, PGC 12530, PGC 12533, PGC 12538, PGC 12550
HCG 26 legacy dr10.jpg 26  03h 21m 54s −13° 38.8′ 7 MCG-02-09-035, HCG 26b, PGC 12604, PGC 12605, PGC 12610, PGC 12613, PGC 12615
HCG 27 legacy dr10.jpg 27  04h 19.4m −11° 42′ 6 PGC 14861, PGC 14862, PGC 14863, PGC 14866, PGC 14870, PGC 14873
HCG 28 legacy dr10.jpg 28  04h 27m 19s −10° 19.0′ 4 PGC 15135, PGC 15136, PGC 15141, HCGd 28d
HCG 29 legacy dr10.jpg 29  04h 34m 45s −30° 32.8′ 4 PGC 15559, PGC 15560, PGC 15561, PGC 15562
HCG 30 legacy dr10.jpg 30  04h 36.5m −02° 49′ 4 MCG+00-12-051, MCG+00-12-054, PGC 15624, PGC 15636
Hickson Compact Group 31.jpg 31  05h 01m 37s −04° 15.4′ 4 NGC 1741A, PGC 16570, NGC 1741B, PGC 16571
HCG 32 legacy dr10.jpg 32  05h 01.7m −15° 25′ 4 MCG-03-13-053, PGC 16578, PGC 16584, PGC 16587
33  05h 10m 47.6s +18° 01′ 11″ 4 PGC 16863, PGC 16866, PGC 16867, PGC 16871
NGC 1875 HCG34 PanS.jpg 34  05h 21m 47s +06° 40.6′ 4 NGC 1875, VV 169b, VV 169c, VV 169d
HCG 35 legacy dr10.jpg 35  08h 45m 20.71s +44° 32′ 23.1″ 6 PGC 24596, PGC 24597, PGC 24598, PGC 24599, PGC 24600, PGC 24601
HCG 36 legacy dr10.jpg 36  09h 09m 24s +15° 47.7′ 4 IC 528, IC 528C, PGC 25782, PGC 25791
NGC 2783 SDSS.jpg 37  09h 13m 35.6s +30° 00′ 51″ 5 NGC 2783, UGC 4856, MCG+05-22-016, MCG+05-22-018, MCG+05-22-020,
HCG 38 legacy dr10.jpg 38  09h 27.6m +12° 16′ 4 MCG+02-24-012, UGC 5044, MCG+02-24-014, PGC 26830
HCG 39 legacy dr10.jpg 39  09h 29m 28s −01° 20.7′ 4 PGC 26925, PGC 26926, PGC 26929, PGC 26931
ARP321 - HST - Hickson Compact Group 40.jpg 40  09h 38m 54s −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
HCG 41 legacy dr10.jpg 41  09h 57m 40s +45° 14.4′ 4 UGC 5345, UGC 5346, MCG+08-18-046, PGC 28784
HCG 42 legacy dr10.jpg 42  10h 00m 13.1s −19° 38′ 24″ 4 NGC 3091, NGC 3096, MCG-03-26-006, PGC 28926 also known as NGC 3091 Group
HCG 43 legacy dr10.jpg 43  10h 11.2m −00° 01′ 6 Z 8-59, Z 8-61, Z 8-62, PGC 29666, PGC 29668, PGC 29673
N3190s.jpg 44  10h 18m 00s +21° 48.7′ 4 NGC 3185, NGC 3187, NGC 3190, NGC 3193
HCG 45 legacy dr10.jpg 45  10h 19.2m +59° 06′ 4 UGC 5564, PGC 30137, PGC 30143, PGC 30156
HCG 46 legacy dr10.jpg 46  10h 22.0m +17° 48′ 4 MCG+03-27-005, MCG+03-27-007, MCG+03-27-008, MCG+03-27-009
HCG 47 legacy dr10.jpg 47  10h 25m 48s +13° 43.9′ 4 UGC 5644, MCG+02-27-013, MCG+02-27-014, MCG+02-27-015
HCG 48 legacy dr10.jpg 48  10h 37m 45.6s −27° 04′ 50″ 4 IC 2597, ESO 501-59, PGC 31577, PGC 31580
HCG 49 legacy dr10.jpg 49  10h 56m 36s +67° 10.8′ 4 PGC 32890, PGC 32893, PGC 32895, PGC 32899
HCG 50 legacy dr10.jpg 50  11h 17m 06s +54° 55.1′ 5 PGC 34444, PGC 34447, PGC 34448, PGC 34452, PGC 34453
HCG 51 SDSS.jpg 51  11h 22m 21.6s +24° 19′ 41″ 7 NGC 3651, NGC 3653, IC 2759, MCG+04-27-030, MCG+04-27-027, PGC 34899, PGC 34901
HCG 52 legacy dr10.jpg 52  11h 26.3m +21° 05′ 4 MCG+04-27-036, PGC 35178, PGC 35179, PGC 35184,
NGC 3697 HGC53 SDSS.jpg 53  11h 28m 58s +20° 46.6′ 4 NGC 3697, Mrk 1296, MCG+04-27-044, PGC 35381
IC700 - SDSS DR14.jpg 54  11h 29m 15s +20° 34.7′ 4 IC 700
HCG 55 legacy dr10.jpg 55  11h 32m 07s +70° 48.7′ 5 PGC 35573, PGC 35574, PGC 35575, 2MASX J11320571+7048236, HCG 55e
HCG 56 ACS F606W.jpg 56  11h 32m 32s +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
N3750s-crop.jpg 57  11h 37m 50.5s +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
HCG 58 legacy dr10.jpg 58  11h 42m 09.4s +10° 16′ 30″ 5 NGC 3817, NGC 3819, NGC 3820, NGC 3822, NGC 3825,
Hickson Compact Group 59.jpg 59  11h 48m 27s +12° 43.0′ 5 IC 737, IC 736, PGC 36871, PGC 36867, PGC 36851
HCG 60 legacy dr10.jpg 60  12h 03m 05s +51° 41.6′ 4 MCG+09-20-071, PGC 38053, PGC 38064, PGC 38072
Boxs-crop.jpg 61  12h 12m 24s +29° 10.7′ 4 NGC 4169, NGC 4170, NGC 4174, NGC 4175
HCG 62 legacy dr10.jpg 62  12h 53m 05.6s −09° 12′ 21″ 4 NGC 4759, NGC 4761, NGC 4764, NGC 4776, NGC 4778
HCG 63 legacy dr10.jpg 63  13h 02.2m −32° 46′ 4 ESO 381-50, ESO 443-37, PGC 44959, PGC 44979
HCG 64 legacy dr10.jpg 64  13h 25m 43s −03° 51.5′ 4 PGC 46971, PGC 46972, PGC 46975, PGC 46977,
HCG 65 legacy dr10.jpg 65  13h 29m 53s −29° 30.0′ 5 ESO 444-55, PGC 47401, PGC 47403, PGC 47406, PGC 47407
HCG 66 legacy dr10.jpg 66  13h 38m 33s +57° 18.3′ 4 MCG+10-19-104, PGC 48220, PGC 48231, PGC 48222
NGC 5306 legacy dr10.jpg 67  13h 49m 03.5s −07° 12′ 20″ 4 NGC 5306, MCG-01-35-013, MCG-01-35-015, PGC 49036
NGC 5350 HCG68 PanS.jpg 68  13h 53m 40.9s +40° 19′ 07″ 5 NGC 5350, NGC 5353, NGC 5354, NGC 5355, NGC 5358
HCG 69 legacy dr10.jpg 69  13h 55m 31s +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
IC4369 - SDSS DR14.jpg 70  14h 04m 07.4s +33° 19′ 10″ 7 IC 4369, IC 4370, IC 4371, UGC 8990, MCG+06-31-057, MCG+06-31-065, PGC 50123
HCG 71 SDSS.jpg 71  14h 11.1m +25° 29′ 4 NGC 5008, IC 4382, PGC 50640, PGC 50641
Arp328 - SDSS DR14.jpg 72  14h 47m 55s +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
NGC 5829 HCG73 SDSS2.jpg 73  15h 02m 40.1s +23° 21′ 13″ 5 NGC 5829, IC 4526, PGC 53702, PGC 53703, PGC 53720
NGC5910 - SDSS DR14.jpg 74  15h 19m 28s +20° 53.6′ 5 NGC 5910, MCG+04-36-036, PGC 54692, PGC 54694, PGC 54697
HCG 75 legacy dr10.jpg 75  15h 21m 37.0s +21° 10′ 50″ 6 PGC 54802, PGC 54803, PGC 54804, PGC 54818, PGC 54824, PGC 54827
HCG 76 SDSS2.jpg 76  15h 31.7m +07° 18′ 5 NGC 5941, NGC 5942, NGC 5944, MCG+01-40-003, PGC 55313, PGC 55325
HCG 77 legacy dr10.jpg 77  15h 49m 17s +21° 49.7′ 4 UGC 10049, PGC 56121, PGC 56122, PGC 56125
HCG 78 legacy dr10.jpg 78  15h 48.5m +68° 12′ 4 UGC 10057, MCG+11-19-016, PGC 56086, PGC 56095
Seyfert's Sextet.png 79  15h 59m 13s +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.
HCG 80 legacy dr10.jpg 80  15h 59m 12s +65° 13.6′ 4 PGC 56572, PGC 56577, PGC 56588, PGC 56590
HCG 81 legacy dr10.jpg 81  16h 18m 13s +12° 47.6′ 4 SDSS J161813.66+124811.2, PGC 57774, PGC 57777, PGC 57779
HCG 82 legacy dr10.jpg 82  16h 28m 22.1s +32° 49′ 25″ 4 NGC 6161, NGC 6162, NGC 6163, PGC 58231
HCG 83 legacy dr10.jpg 83  16h 35m 40.9s +06° 16′ 12″ 5 PGC 58559, PGC 58561, PGC 58562, PGC 58565, PGC 58569
HCG 84 legacy dr10.jpg 84  16h 44m 08s +77° 50.2′ 6 PGC 58856, PGC 58861, PGC 58873, PGC 58877, PGC 58881, PGC 58884
HCG 85 legacy dr10.jpg 85  18h 50m 22.3s +73° 21′ 00″ 4 PGC 62476, PGC 62477, PGC 62478, PGC 62484,
HCG 86 legacy dr10.jpg 86  19h 51m 59.2s −30° 49′ 34″ 4 ESO 461-7, MCG-05-47-001, MCG-05-47-002, MCG-05-47-003,
HCG 87.png 87  20h 48m 11s −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
HCG 88 legacy dr10.jpg 88  20h 52.4m −05° 45′ 4 NGC 6978, NGC 6976, NGC 6977, MCG-01-53-014
HCG 89 legacy dr10.jpg 89  21h 20.2m −03° 54′ 4 MCG-01-54-012, PGC 66574, PGC 66575, PGC 66580
HCG 90HST.jpg 90  22h 02m 06.3s −31° 55′ 48″ 4 NGC 7173, NGC 7174, NGC 7176, and NGC 7172 also called NGC 7176 Group
91  22h 09m 00.8s −27° 47′ 36″ 4 NGC 7214, ESO 467-15, ESO 467-13, HCG 91d also called VV 700 Group
Stephan's Quintet Hubble 2009.full denoise.jpg 92  22h 35m 57.5s +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.
HCG 93 legacy dr10.jpg 93  23h 15m 12.2s +18° 59′ 31″ 5 NGC 7547, NGC 7549, NGC 7550, NGC 7553, NGC 7558
NGC7578 - SDSS DR14.jpg 94  23h 17m 16.5s +18° 43′ 11″ 7 NGC 7578, UGC 12477, PGC 70936, PGC 70937, PGC 70939, PGC 70941, PGC 70943,
NGC7609 - SDSS DR14.jpg 95  23h 19m 32s +09° 29.5′ 4 NGC 7609, MCG+01-59-046, PGC 71077, PGC 71080 also called Arp 150 Group and NGC 7609 Group
Hubble Interacting Galaxy NGC 7674 (2008-04-24).jpg 96  23h 27m 58s +08° 46.4′ 4 NGC 7674, NGC 7674A, NGC 7675, PGC 71507
HCG 97 legacy dr10.jpg 97  23h 47m 24.0s −02° 19′ 08″ 5 IC 5351, IC 5352, IC 5356, IC 5357, IC 5359
HCG 98 legacy dr10.jpg 98  23h 54.2m +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]
HCG 99 legacy dr10.jpg 99  00h 00m 43s +28° 23.7′ 4 UGC 12897, UGC 12899, MCG+05-01-021, PGC 60, PGC 57
HCG 100 legacy dr10.jpg 100  00h 01.3m +13° 07′ 4 NGC 7803, Mrk 934, MCG+02-01-009, MCG+02-01-010

Gallery

See also

References

  1. Hickson, Paul (1982). "Systematic properties of compact groups of galaxies". Astrophysical Journal 255: 382–391. doi:10.1086/159838. Bibcode1982ApJ...255..382H. 
  2. "Compact Groups of Galaxies". http://nedwww.ipac.caltech.edu/level5/Sept01/Hickson/Hickson_contents.html. Retrieved 2006-10-23. 
  3. 3.0 3.1 "HCG". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=HCG&NbIdent=cat&Radius=2&Radius.unit=arcmin&submit=submit+id. Retrieved 8 March 2017. 
  4. Hickson, P. (1982). "Systematic properties of compact groups of galaxies". Astrophysical Journal 255: Part 1, 382–391. doi:10.1086/159838. Bibcode1982ApJ...255..382H. 
  5. "Anne's Picture of the Day: Hickson Compact Group 7". Anne's Astronomy News. 27 December 2012. http://annesastronomynews.com/annes-picture-of-the-day-hickson-compact-group-7/. 
  6. "Hubble views a bizarre cosmic quartet". Space Daily. 22 June 2015. http://www.spacedaily.com/reports/Hubble_views_a_bizarre_cosmic_quartet_999.html. 
  7. Brosch, Noah; Koriski, Shuki; Rich, R. Michael; Mosenkov, Alexandr V. (2019-01-01). "Hickson Compact Group 98: a complex merging group with a giant tidal tail and a humongous envelope". Monthly Notices of the Royal Astronomical Society 482 (2): 2284–2293. doi:10.1093/mnras/sty2717. ISSN 0035-8711. Bibcode2019MNRAS.482.2284B. 
  8. "A fossil in the making". ESA/Hubble Picture of the Week. http://www.spacetelescope.org/images/potw1426a/. Retrieved 3 July 2014. 
  9. "A members-only galaxy club". ESA/Hubble Picture of the Week. http://www.spacetelescope.org/images/potw1349a/. Retrieved 10 December 2013. 

Further reading

External links