NGC 911
| Galaxy NGC 911 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Andromeda |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 25 m 42.4 s |
| declination | + 41 ° 57 ′ 23 ″ |
| Appearance | |
| Morphological type | E. |
| Brightness (visual) | 12.8 mag |
| Brightness (B-band) | 13.8 mag |
| Angular expansion | 1.3 ′ × 0.7 ′ |
| Position angle | 115 ° |
| Surface brightness | 12.8 mag / arcmin² |
| Physical data | |
| Redshift | 0.019233 +/- 0.000053 |
| Radial velocity | 5766 +/- 16 km / s |
|
Stroke distance v rad / H 0 |
(264 ± 19) x 10 6 ly (80.8 ± 5.7) Mpc |
| history | |
| discovery | Édouard Stephan |
| Discovery date | October 30, 1878 |
| Catalog names | |
| NGC 911 • UGC 1878 • PGC 9221 • CGCG 539-021 • MCG + 07-06-016 • 2MASX J02254239 + 4157225 • LDCE 0224 NED021 | |
NGC 911 is an elliptical galaxy of Hubble type E5 in the constellation Andromeda on the northern sky . It is estimated to be 264 million light-years away from the Milky Way and has a diameter of about 100,000 ly. In the same area of the sky there is u. a. the galaxy NGC 909.
The object was discovered on October 30, 1878 by the French astronomer Édouard Stephan .