| NGC 1281 | |
|---|---|
A near-infrared image of NGC 1281. | |
| Observation data (J2000 epoch) | |
| Constellation | Perseus |
| Right ascension | 03h 20m 06.1s [1] |
| Declination | 41° 37′ 48″ [1] |
| Redshift | 0.014343 [1] |
| Heliocentric radial velocity | 4300 km/s [1] |
| Distance | 195.7 ± 3.3 Mly (60 ± 1 Mpc) [2] |
| Group or cluster | Perseus Cluster |
| Apparent magnitude (V) | 14.5 [1] |
| Characteristics | |
| Type | E5 [1] |
| Mass/Light ratio | 1.7 [3] M☉/L☉ |
| Size | ~17,000 ly (5.2 kpc) (estimated) |
| Apparent size (V) | 1.0 x 0.7 [1] |
| Half-light radius (physical) | ~4,200 ly (1.3 kpc) (estimated) [3] |
| Other designations | |
| CGCG 540-108, MCG 7-7-67, PGC 12458 [1] | |
NGC 1281 is a compact [3] elliptical galaxy [4] located about 200 million light-years away [3] in the constellation Perseus. [5] NGC 1281 was discovered by astronomer John Dreyer on December 12, 1876. [6] It is a member of the Perseus Cluster. [7] [6]
Like NGC 1277 and NGC 1271, NGC 1281 is a candidate "relic galaxy". [8]
The supermassive black hole in NGC 1281 has an estimated mass of about 10 billion solar masses (1010 M☉). [3] However, Anna Ferré-Mateu et al. estimated the black hole has a mass of no more than 5 billion solar masses. [8]