NGC 4146
Galaxy in the constellation Coma Berenices
From Wikipedia, the free encyclopedia
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]
Right ascension12h 10m 18.4s[1]
Declination26° 25′ 54″[1]
| 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 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]