| NGC 7124 | |
|---|---|
 The spiral galaxy NGC 7124 | |
| Observation data (J2000epoch) | |
| Constellation | Indus |
| Right ascension | 21h 48m 05.3679s[1] |
| Declination | −50° 33′ 53.979″[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′ × 1.1′[1] |
| Other designations | |
| IRAS 21447-5047,2MASX J21480540-5033549,PGC 67375, ESO 237- G 002[1] | |
NGC 7124 is a largespiral galaxy in theconstellation ofIndus. Its velocity with respect to thecosmic microwave background is 4988 ± 15 km/s, which corresponds to aHubble distance of 240.0 ± 16.8 Mly (73.57 ± 5.16 Mpc).[1] However, ninenon-redshift measurements give a much closer distance of 191.56 ± 4.26 Mly (58.733 ± 1.306 Mpc).[2] It was discovered by British astronomerJohn Herschel on 8 July 1834.[3]
NGC 7124 is classified as aLINER 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]
Onesupernova has been observed in NGC 7124: SN 2023pwl (type Ia, mag 16.7) was discovered byATLAS on 19 August 2023.[4]
Media related toNGC 7124 at Wikimedia Commons
