NGC 255
| Galaxy NGC 255 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | whale |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 47 m 47.3 s |
| declination | -11 ° 28 ′ 07 ″ |
| Appearance | |
| Morphological type | SAB (rs) bc |
| Brightness (visual) | 11.9 likes |
| Brightness (B-band) | 12.4 mag |
| Angular expansion | 3.1 ′ × 2.7 ′ |
| Position angle | 15 ° |
| Surface brightness | 13.9 mag / arcmin² |
| Physical data | |
| Redshift | 0.005287 ± 0.000013 |
| Radial velocity | (1585 ± 4) km / s |
|
Stroke distance v rad / H 0 |
(73 ± 5) · 10 6 ly (22.4 ± 1.6) Mpc |
| history | |
| discovery | Wilhelm Herschel |
| Discovery date | November 27, 1785 |
| Catalog names | |
| NGC 255 • PGC 2802 • MCG -02-03-017 • IRAS 00452-1144 • 2MASX J00474730-1128073 • GC 141 • H II 472 • h 62 • HIPASS J0047-11 • LDCE 41 NED004 | |
NGC 255 is a barred spiral galaxy of the Hubble type SBbc in the constellation Whale south of the celestial equator . It is estimated to be 73 million light years from the Milky Way and about 65,000 light years in diameter.
The object was discovered on November 27, 1785 by the German-British astronomer Wilhelm Herschel .
Web links
Commons : NGC 255 - collection of images, videos, and audio files
