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Coma I
Galaxy cluster in constellation Coma Berenices / From Wikipedia, the free encyclopedia
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Not to be confused with Coma Cluster.
The Coma I Group is a group of galaxies[3][1] located about 14.5 Mpc (47.3 Mly)[7] away in the constellation Coma Berenices. The brightest member of the group is NGC 4725. The Coma I Group is rich in spiral galaxies while containing few elliptical and lenticular galaxies. Coma I lies in the foreground of the more distant Coma and Leo clusters and is located within the Virgo Supercluster.[3]
Quick Facts Observation data (Epoch J2000), Constellation(s) ...
Coma I Group | |
---|---|
![]() NGC 4414, a flocculent spiral galaxy in the Coma I Group | |
Observation data (Epoch J2000) | |
Constellation(s) | Coma Berenices & Ursa Major |
Right ascension | 12h 22m 19.4s[1][2] |
Declination | 29° 53′ 47″[1][2] |
Brightest member | NGC 4725[3] |
Number of galaxies | 22–34[3][4][2][5][6] |
Velocity dispersion | 307 km/s[7] |
Redshift | 0.002418 (724 km/s)[1] |
Distance | 14.52 Mpc (47.4 Mly)[7] |
Binding mass | 2.5×1012 [3] M☉ |
X-ray luminosity | 1.6×1043 erg/s [8] |
Other designations | |
Coma I Group,[9] NGC 4274 Group,[1] NGC 4062 Group, NGC 4565 Group, NGC 4631 Group, LGG 279, LGG 291, LGG 294[4] NBGG 14-01,[1][5] NBGG 14-02, NBGG 14 -2 +1,[9][5] NGC 4203 Group, NOGG H 611, NOGG P1 631, NOGG P2 642, NOGG P2 641[2] |
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The Coma I Group is currently infalling into the Virgo Cluster and will eventually merge with it.[10]