NGC 3120
Galaxy in the constellation Antlia
From Wikipedia, the free encyclopedia
NGC 3120 is an intermediate spiral galaxy in the constellation of Antlia. Its velocity with respect to the cosmic microwave background is 3,105±22 km/s, which corresponds to a Hubble distance of 149.4 ± 10.5 Mly (45.80 ± 3.22 Mpc).[1] However, 17 non-redshift measurements give a much closer mean distance of 97.19 ± 5.92 Mly (29.800 ± 1.816 Mpc).[2] It was discovered by British astronomer John Herschel on 22 January 1838.[3]
| NGC 3120 | |
|---|---|
NGC 3120 imaged by DSS | |
| Observation data (J2000 epoch) | |
| Constellation | Antlia |
| Right ascension | 10h 05m 23.0413s[1] |
| Declination | −34° 13′ 11.847″[1] |
| Redshift | 0.009300±0.00000500[1] |
| Heliocentric radial velocity | 2,788±1 km/s[1] |
| Distance | 97.19 ± 5.92 Mly (29.800 ± 1.816 Mpc)[2] |
| Group or cluster | NGC 3038 Group (LGG 184) |
| Apparent magnitude (V) | 13.52[1] |
| Characteristics | |
| Type | SAB(s)bc[1] |
| Size | ~79,200 ly (24.27 kpc) (estimated)[1] |
| Apparent size (V) | 1.8′ × 1.2′[1] |
| Other designations | |
| ESO 374- G 029, IRAS 10031-3358, 2MASX J10052305-3413118, MCG -06-22-017, PGC 29278[1] | |
NGC 3120 has a possible active galactic nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.[4][5]
