NGC 4673

NGC 4673
SDSS image of NGC 4673.
Observation data (J2000 epoch)
Constellation	Coma Berenices
Right ascension	12h 45m 34.7s [1]
Declination	27° 03′ 39″ [1]
Redshift	0.022856 [1]
Heliocentric radial velocity	6852 km/s [1]
Distance	317  Mly (97.2  Mpc)
Apparent magnitude  (V)	13.87 [1]
Absolute magnitude  (B)	-21.96 [1]
Characteristics
Type	E1-2 [1]
Size	~75,100  ly (23.04  kpc) (estimated) [1]
Apparent size  (V)	1.0′ × 0.9′ [1]
Other designations
UGC 07933, MRK 0656, CGCG 159-070, MCG +05-30-073, PGC 043008 [1]

NGC 4673 is an elliptical galaxy located 317 million light-years away ^[2] in the constellation Coma Berenices. It was discovered on April 6, 1785, by astronomer William Herschel. ^[3] NGC 4673 part of a group of 11 galaxies, known as [T2015] nest 100111, which is also known as the NGC 4692 Group ^[4] and is part of the Coma Supercluster. ^{[5] [6]}

NGC 4673 is host to a supermassive black hole with an estimated mass of 7.2 × 10⁸ M_☉, ^[7] and a population of 750 globular clusters. ^[8]

See also

• Coma Supercluster

References

1. "Results for object NGC 4673". NASA/IPAC Extragalactic Database. NASA and Caltech . Retrieved 2025-09-19.
2. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2025-09-19.
3. "New General Catalog Objects: NGC 4650 - 4699". cseligman.com. Retrieved 2025-09-19.
4. Tully, R. Brent (May 2015). "Galaxy Groups: A 2MASS Catalog". The Astronomical Journal. 149 (5): 171. arXiv: 1503.03134 . doi:10.1088/0004-6256/149/5/171. ISSN   0004-6256.
5. Gregory, S. A.; Thompson, L. A. (June 1978). "The Coma/A1367 supercluster and its environs". The Astrophysical Journal. 222: 784. doi:10.1086/156198. ISSN   0004-637X.
6. Jaffe, W.; Gavazzi, G. (February 1986). "Radio continuum survey of the coma/A1367 supercluster. II. 1.5 GHz observations of 396 CGCG galaxies". The Astronomical Journal. 91: 204–216. doi:10.1086/114001. ISSN   0004-6256.
7. Arzoumanian, Zaven; Baker, Paul T.; Brazier, Adam; Brook, Paul R.; Burke-Spolaor, Sarah; Becsy, Bence; Charisi, Maria; Chatterjee, Shami; Cordes, James M.; Cornish, Neil J.; Crawford, Fronefield; Cromartie, H. Thankful; Decesar, Megan E.; Demorest, Paul B.; Dolch, Timothy (2021-06-01). "The NANOGrav 11 yr Data Set: Limits on Supermassive Black Hole Binaries in Galaxies within 500 Mpc". The Astrophysical Journal. 914 (2): 121. arXiv: 2101.02716 . Bibcode:2021ApJ...914..121A. doi: 10.3847/1538-4357/abfcd3 . ISSN   0004-637X.
8. Harris, William E.; Harris, Gretchen L. H.; Alessi, Matthew (August 2013). "A Catalog of Globular Cluster Systems: What Determines the Size of a Galaxy's Globular Cluster Population?". The Astrophysical Journal. 772 (2): 82. doi:10.1088/0004-637X/772/2/82. ISSN   0004-637X.