NGC 4231
| Galaxy NGC 4231 |
|
|---|---|
|
|
| NGC 4231 & NGC 4232 | |
| AladinLite | |
| Constellation | Hunting dogs |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 12 h 16 m 48.9 s |
| declination | + 47 ° 27 ′ 27 ″ |
| Appearance | |
| Morphological type | SA0 + |
| Brightness (visual) | 13.6 mag |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 1.2 '× 1.1' |
| Position angle | 33 ° |
| Surface brightness | 13.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.024687 ± 0.000150 |
| Radial velocity | 7401 ± 45 km / s |
|
Stroke distance v rad / H 0 |
(333 ± 23) x 10 6 ly (102.2 ± 7.2) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | March 9, 1788 |
| Catalog names | |
| NGC 4231 • UGC 7304 • PGC 39354 • CGCG 243-060 • MCG + 08-22-094 • 2MASX J12164888 + 4727268 • GC 2827 • H III 719 • GALEX MSC J121649.02 + 472727.1 • LDCE 877 NED005 • HOLM 356A | |
NGC 4231 is a lenticular galaxy of the Hubble type S0 / a in the constellation Hounds in the northern sky . It is an estimated 333 million light years from the Milky Way and about 120,000 light years in diameter. Together with NGC 4232 , it forms the gravitationally bound galaxy pair Holm 356 .
In the same area of the sky are u. a. the galaxies NGC 4217 , NGC 4220 , NGC 4226 , NGC 4248 .
The object was discovered by Wilhelm Herschel on March 9, 1788 .