NGC 238
| Galaxy NGC 238 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Phoenix |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 43 m 25.7 s |
| declination | -50 ° 10 ′ 58 ″ |
| Appearance | |
| Morphological type | (R ') SB (rs) b |
| Brightness (visual) | 12.4 mag |
| Brightness (B-band) | 13.2 mag |
| Angular expansion | 2 ′ × 1.6 ′ |
| Position angle | 96 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.028706 ± 0.000026 |
| Radial velocity | 8606 ± 8 km / s |
|
Stroke distance v rad / H 0 |
(381 ± 27) x 10 6 ly (116.8 ± 8.2) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | October 2, 1834 |
| Catalog names | |
| NGC 238 • PGC 2595 • ESO 194-031 • 2MASX J00432575-5010580 • GC 126 • h 2341 • GALEX ASC J004325.57-501058.6 • FAIR 663 | |
NGC 238 is a bar-spiral galaxy of the Hubble type SBb in the constellation Phoenix in the southern sky . It is estimated to be 381 million light years from the Milky Way and about 230,000 ly in diameter.
The object was discovered on October 2, 1834 by the British astronomer John Herschel .