NGC 142
| Galaxy NGC 142 |
|
|---|---|
![NGC 143 (o), NGC 143 (m), NGC 144 (u) [1]](https://de.wikipedia.org/wiki/Datei:NGC_0144_DSS.jpg)
|
|
| NGC 143 (o), NGC 143 (m), NGC 144 (u) | |
| AladinLite | |
| Constellation | whale |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 31 m 08.08 s |
| declination | -22 ° 37 ′ 07.2 ″ |
| Appearance | |
| Morphological type | SB (s) b? / pec |
| Brightness (visual) | 13.8 mag |
| Brightness (B-band) | 14.6 mag |
| Angular expansion | 1.1 ′ × 0.6 ′ |
| Position angle | 101 ° |
| Surface brightness | 13.2 mag / arcmin² |
| Physical data | |
| Redshift | 0.026735 ± 0.000127 |
| Radial velocity | 8015 ± 38 km / s |
|
Stroke distance v rad / H 0 |
(359 ± 25) x 10 6 ly (110.0 ± 7.7) Mpc |
| history | |
| discovery | Frank Muller |
| Discovery date | 1886 |
| Catalog names | |
| NGC 142 • PGC 1901 • ESO 473-021 • MCG -04-02-014 • IRAS 00286-2253 • 2MASX J00310808-2237072 • SGC 002839-2253.7 • GALEX ASC J003108.08-223708.2 • LDCE 24 NED001 • NVSS J003108-223708 • WISEA J003108.08-223707.2 | |
NGC 142 is a barred spiral galaxy of the Hubble type SBb in the constellation Whale south of the ecliptic . It is an estimated 359 million light years from the Milky Way and about 115,000 light years in diameter. Presumably it forms a gravitationally bound galaxy trio together with NGC 143 and NGC 144 .
The object was discovered in 1886 by the American astronomer Frank Muller .