NGC 7124 is a large spiral galaxy in the constellation of Indus. Its velocity with respect to the cosmic microwave background is 4988 ± 15 km/s, which corresponds to a Hubble distance of 73.57 ± 5.16 Mpc (∼240 million light-years).[1] It was discovered by British astronomer John Herschel on 8 July 1834.[2]
| NGC 7124 | |
|---|---|
 The spiral galaxy NGC 7124. | |
| Observation data (J2000 epoch) | |
| Constellation | Indus |
| Right ascension | 21h 48m 05.39s[1] |
| Declination | −50° 33′ 54.8″[1] |
| Redshift | 0.017251 [1] |
| Heliocentric radial velocity | 5172 ± 8 km/s[1] |
| Distance | 240.0 ± 16.8 Mly (73.57 ± 5.16 Mpc)[1] |
| Apparent magnitude (V) | 12.3[1] |
| Characteristics | |
| Type | SB(rs)bc[1] |
| Size | ~206,200 ly (63.21 kpc) (estimated)[1] |
| Apparent size (V) | 2.8' x 1.1'[1] |
| Other designations | |
| IRAS 21447-5047, 2MASX J21480540-5033549, PGC 67375, ESO 237- G 002[1] | |
NGC 7124 is classified as a LINER galaxy, i.e. it has a type of nucleus that is defined by its spectral line emission which has weakly ionized or neutral atoms, while the spectral line emission from strongly ionized atoms is relatively weak.[1]
One supernova has been observed in NGC 7124: SN 2023pwl (type Ia, mag 16.7).[3]
See also
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Media related to NGC 7124 at Wikimedia Commons- NGC 7124 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
