| NGC 753 | |
|---|---|
Pan-STARRS image of NGC 753 | |
| Observation data (J2000 epoch) | |
| Constellation | Andromeda |
| Right ascension | 01h 57m 42.2104s |
| Declination | +35° 54′ 58.262″ |
| Redshift | 0.016221 |
| Heliocentric radial velocity | 4863 km/s |
| Distance | 220 Mly (67 Mpc) |
| Group or cluster | Abell 262 |
| Apparent magnitude (V) | 12.97 |
| Characteristics | |
| Type | SAB(rs)bc |
| Size | ~148,000 ly (45.39 kpc) (estimated) |
| Apparent size (V) | 2.5′ × 1.9′ |
| Other designations | |
| IRAS 01547+3540, UGC 1437, MCG +06-05-066, PGC 7387, CGCG 522-086 | |
NGC 753 is a spiral galaxy located 220 million light-years away in the constellation Andromeda. The galaxy was discovered by astronomer by Heinrich d'Arrest on September 16, 1865 and is a member of Abell 262.
NGC 753 has roughly 2-3 times more mass than the Milky Way and is classified as a radio galaxy.
NGC 753 contains two main arms that extend to 180° on either side of the galaxy. From the two main arms, there are three larger and weaker arms that sub-divide into several branches. This open structure of the arms may be due to the influence of NGC 759 which is a close companion of NGC 753 that lies 1.4 Mly (0.44 Mpc) away.
NGC 753 has a supermassive black hole with an estimated mass of (2.2 ± 0.4) × 107 M☉.
NGC 753 has hosted two supernovae: