| NGC 6142 | |
|---|---|
NGC 6142 imaged by SDSS | |
| Observation data (J2000 epoch) | |
| Constellation | Corona Borealis |
| Right ascension | 16h 23m 21.0702s |
| Declination | +37° 15′ 30.466″ |
| Redshift | 0.033843±0.0000113 |
| Heliocentric radial velocity | 10,146±3 km/s |
| Distance | 489.7 ± 34.3 Mly (150.15 ± 10.51 Mpc) |
| Group or cluster | Abell 2199 |
| Apparent magnitude (V) | 14.3g |
| Characteristics | |
| Type | Sb |
| Size | ~295,700 ly (90.66 kpc) (estimated) |
| Apparent size (V) | 1.75′ × 0.59′ |
| Other designations | |
| 2MASX J16232109+3715305, UGC 10366, MCG +06-36-041, PGC 57984, CGCG 196-056 | |
NGC 6142 is a large spiral galaxy in the constellation of Corona Borealis. Its velocity with respect to the cosmic microwave background is 10,180±4 km/s, which corresponds to a Hubble distance of 489.7 ± 34.3 Mly (150.15 ± 10.51 Mpc). It was discovered by German-British astronomer William Herschel on 30 May 1791.
NGC 6142 is a member of the galaxy cluster known as Abell 2199.
One supernova has been observed in NGC 6142: