NGC 6142
| Galaxy NGC 6142 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | Northern crown |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 16 h 23 m 21.0 s |
| declination | + 37 ° 15 ′ 30 ″ |
| Appearance | |
| Morphological type | Sb |
| Brightness (visual) | 13.8 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 2.0 ′ × 0.5 ′ |
| Position angle | 165 ° |
| Surface brightness | 13.7 mag / arcmin² |
| Physical data | |
| Affiliation | Abell 2199 |
| Redshift | 0.034130 +/- 0.000103 |
| Radial velocity | 10,232 +/- 31 km / s |
|
Stroke distance v rad / H 0 |
(464 ± 33) · 10 6 ly (142.2 ± 10.0) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | May 30, 1791 |
| Catalog names | |
| NGC 6142 • UGC 10366 • PGC 57984 • CGCG 196-056 • MCG + 06-36-41 • KUG 1621 + 373 • 2MASX J16232109 + 3715305 • GC 4191 • H III 892 • | |
NGC 6142 is a 13.8 mag bright spiral galaxy of the Hubble type Sb in the constellation Northern Crown . It is estimated to be 464 million light years from the Milky Way and has a disk diameter of around 270,000 ly.
The object was discovered on May 30, 1791 by Wilhelm Herschel with an 18.7-inch reflector telescope, who described it as "eF, S, bM".