NGC 2855
| Galaxy NGC 2855 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Water snake |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 09 h 21 m 27.5 s |
| declination | -11 ° 54 ′ 34 ″ |
| Appearance | |
| Morphological type | (R) SA (rs) 0 / a / LINER ? |
| Brightness (visual) | 11.7 mag |
| Brightness (B-band) | 12.6 mag |
| Angular expansion | 2.5 ′ × 2.2 ′ |
| Position angle | 132 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.006328 ± 0.000057 |
| Radial velocity | 1897 ± 17 km / s |
|
Stroke distance v rad / H 0 |
(76 ± 6) · 10 6 ly (23.4 ± 1.7) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | March 19, 1786 |
| Catalog names | |
| NGC 2855 • PGC 26483 • MCG -02-24-015 • IRAS 09190-1141 • 2MASX J09212749-1154341 • GC 1835 • H I 132 • h 592 • NVSS J092127-115422 | |
NGC 2855 is a lenticular galaxy of the Hubble type S0 / a in the constellation Hydra south of the ecliptic . It is estimated to be 76 million light years from the Milky Way and about 55,000 light years in diameter.
The object was discovered by Wilhelm Herschel on March 19, 1786 .