NGC 4146

NGC 4146
NGC 4146 imaged by SDSS
Observation data (J2000 epoch)
Constellation	Coma Berenices
Right ascension	12h 10m 18.4s [1]
Declination	26° 25′ 54″ [1]
Redshift	0.021758 [1]
Heliocentric radial velocity	6523 km/s [1]
Distance	300  Mly (93  Mpc) [1]
Apparent magnitude  (V)	13.59 [1]
Characteristics
Type	(R)SAB(s)ab [1]
Size	~156,200  ly (47.89  kpc) (estimated) [1]
Apparent size  (V)	1.4′ × 1.3′ [1]
Other designations
UGC 07163, CGCG 158-036, MCG +05-29-028, PGC 038721 [1]

NGC 4146 is a spiral galaxy located 300 million light-years away ^[2] in the constellation Coma Berenices. It was discovered on April 6, 1785, by astronomer William Herschel. ^[3] NGC 4146 is a field galaxy and is part of the Coma Supercluster. ^{[4] [5]}

NGC 4146 is a type 2 seyfert galaxy, ^[6] and is host to a supermassive black hole with an estimated mass of 4.1 × 10⁸ M_☉. ^[7]

Supernova

One supernova has been observed in NGC 4146. SN 1963D (type unknown, mag. 15.8) was discovered by Leonida Rosino on January 22, 1963. ^{[8] [9]}

See also

• Coma Supercluster

References

1. "Results for object NGC 4146". NASA/IPAC Extragalactic Database. NASA and Caltech . Retrieved 2025-07-15.
2. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2025-07-18.
3. "New General Catalog Objects: NGC 4100 - 4149". cseligman.com. Retrieved 2025-07-18.
4. Gregory, S. A.; Thompson, L. A. (1978-06-15). "The Coma/A1367 supercluster and its environs". The Astrophysical Journal. 222: 784. Bibcode:1978ApJ...222..784G. doi:10.1086/156198. ISSN   0004-637X.
5. Boselli, A.; Gavazzi, G.; Lequeux, J.; Buat, V.; Casoli, F.; Dickey, J.; Donas, J. (November 1997). "The molecular gas content of spiral galaxies in the Coma/A1367 supercluster". Astronomy and Astrophysics. 327: 522–538. ISSN   0004-6361.
6. "NGC 4146". simbad.cds.unistra.fr. Retrieved 2025-07-18.
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. Rosino, Dr. L. (28 January 1963). "Supernova". International Astronomical Union Circular (1816). Observatory Copenhagen, IAU: 1. Retrieved 18 July 2025.
9. "1963D | Transient Name Server". www.wis-tns.org. Retrieved 2025-07-18.