# IC 4051

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Galaxy in the constellation Coma Berenices

IC 4051 James Webb Space Telescope image of IC 4051 Observation data (J2000 epoch) Constellation Coma Berenices Right ascension 13h 00m 54.463s[1] Declination +28° 00′ 27.50″[1] Redshift 0.011071±0.00003[2] Heliocentric radial velocity 3,286 km/s[3] Distance 330 Mly (100 Mpc)[4] Group or cluster Coma Cluster[5] Apparent magnitude (V) 13.2[5] Apparent magnitude (B) 14.17[6] Absolute magnitude (V) −21.62±0.35[6] Characteristics Type E2[5] Other designations IC 4501, LEDA 52810, MCG -04-35-009[7]

**IC 4051** is a large [elliptical galaxy](/source/Elliptical_galaxy)[8] in the northern [constellation](/source/Constellation) of [Coma Berenices](/source/Coma_Berenices). It was discovered by the French astronomer [Guillaume Bigourdan](/source/Guillaume_Bigourdan) on April 12, 1891.[9] This object is located 14[′](/source/Minute_of_arc) east of the core of the large [Coma Cluster](/source/Coma_Cluster) of galaxies,[5][10] at a distance of 330 million [light-years](/source/Light-year) (100 [Mpc](/source/Parsec#Megaparsecs_and_gigaparsecs)) from the [Milky Way](/source/Milky_Way).[4] With a combined [apparent visual magnitude](/source/Apparent_visual_magnitude) of 13.20, it is the fifth brightest galaxy within a degree of the cluster core.[8] The galaxy displays a significant [radial velocity](/source/Radial_velocity) difference from the cluster as a whole, indicating that it may oscillate back-and-forth through the cluster and is now passing through the more dense core at high velocity.[8]

The [morphological classification](/source/Galaxy_morphological_classification) of IC 4051 is E2, indicating a slightly oval-shaped elliptical galaxy. The structure of the galaxy is relatively compact, suggesting it has undergone tidal trimming of its [halo](/source/Galactic_halo) from the surrounding galaxy cluster.[8] It has a peculiar core that is counter-rotating with respect to the galaxy as a whole. This core region extends out to an [angular radius](/source/Angular_radius) of 4[″](/source/Second_of_arc), which corresponds to a physical radius of about 8,800 light-years (2.7 kpc). This star population is old and [metal-rich](/source/Metallicity), but contributes only 1% of the total galactic luminosity.[11]

IC 4051 has an unusually large population of [globular clusters](/source/Globular_cluster), comparable to a [Type-cD galaxy](/source/Type-cD_galaxy). Most of these clusters appear metal-rich. The evolutionary picture of this galaxy suggests that it was stripped of most of its gas after the globular cluster population was formed in situ, with the gas being carried away during the early passages through the cluster core.[8] Metal-rich globulars are found within about 33,000 light-years (10 kpc) of the galactic center, while the metal-poor globulars are found further out in a halo orbiting the galaxy.[6]

**SN 1950A** was a [Type I supernova](/source/Type_I_supernova) event that was discovered by [M. L. Humason](/source/Milton_L._Humason) from [photographic plates](/source/Photographic_plate) taken March 20 and April 11, 1950. It was positioned 13.0″ North and 1.5″ West of the galactic center of IC 4051. The event was at magnitude 17.7±0.1 on March 20.[12][13]

## References

1. ^ [***a***](#cite_ref-GaiaEDR3_1-0) [***b***](#cite_ref-GaiaEDR3_1-1) [Brown, A. G. A.](/source/Anthony_Brown_(scientist)); et al. (Gaia collaboration) (2021). ["*Gaia* Early Data Release 3: Summary of the contents and survey properties"](https://doi.org/10.1051%2F0004-6361%2F202039657). *[Astronomy & Astrophysics](/source/Astronomy_%26_Astrophysics)*. **649**: A1. [arXiv](/source/ArXiv_(identifier)):[2012.01533](https://arxiv.org/abs/2012.01533). [Bibcode](/source/Bibcode_(identifier)):[2021A&A...649A...1G](https://ui.adsabs.harvard.edu/abs/2021A&A...649A...1G). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/202039657](https://doi.org/10.1051%2F0004-6361%2F202039657). [S2CID](/source/S2CID_(identifier)) [227254300](https://api.semanticscholar.org/CorpusID:227254300). (Erratum: [doi](/source/Doi_(identifier)):[10.1051/0004-6361/202039657e](https://doi.org/10.1051%2F0004-6361%2F202039657e)). [Gaia EDR3 record for this source](https://vizier.u-strasbg.fr/viz-bin/VizieR-S?Gaia%20EDR3%201460799848604514304) at [VizieR](/source/VizieR).

1. **[^](#cite_ref-Côté_et_al_1997_2-0)** Côté, S.; et al. (1997), "Discovery of Numerous Dwarf Galaxies in the Two Nearest Groups of Galaxies", *Astronomical Journal*, **114**: 1313, [arXiv](/source/ArXiv_(identifier)):[astro-ph/9704030](https://arxiv.org/abs/astro-ph/9704030), [Bibcode](/source/Bibcode_(identifier)):[1997AJ....114.1313C](https://ui.adsabs.harvard.edu/abs/1997AJ....114.1313C), [doi](/source/Doi_(identifier)):[10.1086/118565](https://doi.org/10.1086%2F118565), [S2CID](/source/S2CID_(identifier)) [119495338](https://api.semanticscholar.org/CorpusID:119495338).

1. **[^](#cite_ref-Tully_2015_3-0)** Tully, R. Brent (April 28, 2015), "Galaxy groups: a 2MASS catalog", *The Astronomical Journal*, **149** (5): 171, [arXiv](/source/ArXiv_(identifier)):[1503.03134](https://arxiv.org/abs/1503.03134), [Bibcode](/source/Bibcode_(identifier)):[2015AJ....149..171T](https://ui.adsabs.harvard.edu/abs/2015AJ....149..171T), [doi](/source/Doi_(identifier)):[10.1088/0004-6256/149/5/171](https://doi.org/10.1088%2F0004-6256%2F149%2F5%2F171), [ISSN](/source/ISSN_(identifier)) [1538-3881](https://search.worldcat.org/issn/1538-3881).

1. ^ [***a***](#cite_ref-Hammer_et_al_2010_4-0) [***b***](#cite_ref-Hammer_et_al_2010_4-1) Hammer, D.; et al. (September 2010), "Deep GALEX Observations of the Coma Cluster: Source Catalog and Galaxy Counts", *The Astrophysical Journal Supplement*, **190** (1): 43–57, [arXiv](/source/ArXiv_(identifier)):[1004.2498](https://arxiv.org/abs/1004.2498), [Bibcode](/source/Bibcode_(identifier)):[2010ApJS..190...43H](https://ui.adsabs.harvard.edu/abs/2010ApJS..190...43H), [doi](/source/Doi_(identifier)):[10.1088/0067-0049/190/1/43](https://doi.org/10.1088%2F0067-0049%2F190%2F1%2F43).

1. ^ [***a***](#cite_ref-Baum_et_al_1997_5-0) [***b***](#cite_ref-Baum_et_al_1997_5-1) [***c***](#cite_ref-Baum_et_al_1997_5-2) [***d***](#cite_ref-Baum_et_al_1997_5-3) Baum, William A.; et al. (May 1997), "Distance to the Coma Cluster and a Value for HO Inferred from Globular Clusters in IC 4051", *Astronomical Journal*, **113**: 1483, [Bibcode](/source/Bibcode_(identifier)):[1997AJ....113.1483B](https://ui.adsabs.harvard.edu/abs/1997AJ....113.1483B), [doi](/source/Doi_(identifier)):[10.1086/118365](https://doi.org/10.1086%2F118365).

1. ^ [***a***](#cite_ref-Hempel_et_al_2005_6-0) [***b***](#cite_ref-Hempel_et_al_2005_6-1) [***c***](#cite_ref-Hempel_et_al_2005_6-2) Hempel, M.; et al. (August 2005), "Extragalactic globular clusters in the near-infrared. V. IC 4051 and NGC 3311", *Astronomy and Astrophysics*, **439** (1): 59–73, [arXiv](/source/ArXiv_(identifier)):[astro-ph/0505104](https://arxiv.org/abs/astro-ph/0505104), [Bibcode](/source/Bibcode_(identifier)):[2005A&A...439...59H](https://ui.adsabs.harvard.edu/abs/2005A&A...439...59H), [doi](/source/Doi_(identifier)):[10.1051/0004-6361:20041857](https://doi.org/10.1051%2F0004-6361%3A20041857).

1. **[^](#cite_ref-SIMBAD_7-0)** ["IC 4051"](http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=IC+4051). *[SIMBAD](/source/SIMBAD)*. [Centre de données astronomiques de Strasbourg](/source/Centre_de_donn%C3%A9es_astronomiques_de_Strasbourg). Retrieved 2025-01-15.

1. ^ [***a***](#cite_ref-Woodworth_Harris_2000_8-0) [***b***](#cite_ref-Woodworth_Harris_2000_8-1) [***c***](#cite_ref-Woodworth_Harris_2000_8-2) [***d***](#cite_ref-Woodworth_Harris_2000_8-3) [***e***](#cite_ref-Woodworth_Harris_2000_8-4) Woodworth, Sean C.; Harris, William E. (June 2000), "The Globular Cluster Systems in the Coma Ellipticals. III. The Unique Case of IC 4051", *The Astronomical Journal*, **119** (6): 2699–2710, [arXiv](/source/ArXiv_(identifier)):[astro-ph/0002292](https://arxiv.org/abs/astro-ph/0002292), [Bibcode](/source/Bibcode_(identifier)):[2000AJ....119.2699W](https://ui.adsabs.harvard.edu/abs/2000AJ....119.2699W), [doi](/source/Doi_(identifier)):[10.1086/301400](https://doi.org/10.1086%2F301400).

1. **[^](#cite_ref-CSeligman_9-0)** Seligman, Courtney, ["IC Objects: IC 4050 - 4099"](https://cseligman.com/text/atlas/ic40a.htm#ic4051), *Celestial Atlas*, retrieved 2025-01-16.

1. **[^](#cite_ref-Marín-Franch_Aparicio_2002_10-0)** Marín-Franch, A.; Aparicio, A. (March 2002), "Globular Cluster Systems in Elliptical Galaxies of Coma", *The Astrophysical Journal*, **568** (1): 174–189, [arXiv](/source/ArXiv_(identifier)):[astro-ph/0112209](https://arxiv.org/abs/astro-ph/0112209), [Bibcode](/source/Bibcode_(identifier)):[2002ApJ...568..174M](https://ui.adsabs.harvard.edu/abs/2002ApJ...568..174M), [doi](/source/Doi_(identifier)):[10.1086/338839](https://doi.org/10.1086%2F338839).

1. **[^](#cite_ref-Mehlert_et_al_1998_11-0)** Mehlert, D.; et al. (April 1998), "The kinematically peculiar cores of the Coma cluster early-type galaxies NGC 4816 and IC 4051", *Astronomy and Astrophysics*, **332**: 33–45, [arXiv](/source/ArXiv_(identifier)):[astro-ph/9712176](https://arxiv.org/abs/astro-ph/9712176), [Bibcode](/source/Bibcode_(identifier)):[1998A&A...332...33M](https://ui.adsabs.harvard.edu/abs/1998A&A...332...33M).

1. **[^](#cite_ref-Humason_1950_12-0)** Humason, Milton L. (June 1950), "Novae in Two Extragalactic Nebulae", *Publications of the Astronomical Society of the Pacific*, **62** (365): 116, [Bibcode](/source/Bibcode_(identifier)):[1950PASP...62..116H](https://ui.adsabs.harvard.edu/abs/1950PASP...62..116H), [doi](/source/Doi_(identifier)):[10.1086/126248](https://doi.org/10.1086%2F126248).

1. **[^](#cite_ref-Barbon_1978_13-0)** Barbon, R. (January 1978), "Supernovae in the Coma cluster of galaxies", *Astronomical Journal*, **83**: 13–19, [Bibcode](/source/Bibcode_(identifier)):[1978AJ.....83...13B](https://ui.adsabs.harvard.edu/abs/1978AJ.....83...13B), [doi](/source/Doi_(identifier)):[10.1086/112170](https://doi.org/10.1086%2F112170).

v t e Constellation of Coma Berenices List of stars in Coma Berenices Coma Berenices in Chinese astronomy Stars Bayer α (Diadem) β γ Flamsteed 7 11 12 13 14 16 17 21 23 (Phyllon Kissinou) 24 31 35 36 37 41 Variable FK GP IN LW HR 4668 HD 107146 108863 108874 110067 114762 b 115404 116029 Other 2MASS J12195156+3128497 KELT-6 WASP-56 WISE 1217+1626 Exoplanets HD 108874 b c KELT-6b Star clusters Coma Star Cluster Messier 53 NGC 4147 NGC 5053 Nebulae LoTr 5 Galaxies Messier 64 (Black Eye Galaxy) 85 88 91 98 99 100 NGC 4014 4015 4017 4053 4056 4060 4061 4065 4066 4070 4072 4074 4076 4084 4086 4089 4090 4091 4092 4093 4095 4098 4136 4146 4150 4162 4185 4189 4203 4211 4212 4213 4222 4237 4245 4253 4262 4274 4278 4293 4298 4302 4308 4310 4312 4314 4323 4328 4340 4359 4375 4383 4393 4394 4414 4419 4448 4450 4455 4459 4468 4473 4474 4475 4477 4479 4489 4494 4495 4498 4502 4506 4515 4516 4523 4525 4540 4555 4556 4558 4559 4561 4565 4571 4585 4595 4611 4614 4615 4633 4634 4651 4659 4670 4673 4676 (Mice Galaxies) 4689 4692 4710 4712 4725 4747 4839 4848 4860 4869 4871 4872 4873 4874 4875 4876 4881 4883 4886 4889 4892 4895 4907 4911 4919 4921 4944 5000 5004 5012 5032 5056 5172 Other 3C 275.1 3C 287 Arp 60 Coma Berenices Dragonfly 44 IC 755 (NGC 4019) IC 831 IC 860 IC 3505 IC 3528 IC 4040 IC 4051 IOK-1 IRAS F12032+1707 LEDA 83677 M85-HCC1 Malin 1 PGC 44691 PKS 1155+251 PKS 1222+216 VIRGOHI21 ZwCl 1305.4+2941 BCG Galaxy clusters Abell 1413 Coma I Coma Cluster Coma Supercluster M94 Group NGC 4065 Group NGC 4631 Group Astronomical events GRB 050509B iPTF14atg SN 1940B SN 1979C SN 2005ap SN 2006X SN 2020oi Category

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