NGC 999
| Galaxy NGC 999 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Andromeda |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 02 h 38 m 47.4 s |
| declination | + 41 ° 40 ′ 14 ″ |
| Appearance | |
| Morphological type | (R ') SAB (s) a |
| Brightness (visual) | 13.6 mag |
| Brightness (B-band) | 14.5 mag |
| Angular expansion | 0.9 ′ × 0.8 ′ |
| Position angle | 48 ° |
| Surface brightness | 13.4 mag / arcmin² |
| Physical data | |
| Redshift | 0.014653 ± 0.000097 |
| Radial velocity | 4393 ± 29 km / s |
|
Stroke distance v rad / H 0 |
(202 ± 14) · 10 6 ly (61.9 ± 4.3) Mpc |
| history | |
| discovery | Édouard Stephan |
| Discovery date | December 8, 1871 |
| Catalog names | |
| NGC 999 • UGC 2127 • PGC 10026 • CGCG 539-066 • MCG + 07-06-047 • 2MASX J02384745 + 4140132 • GC 5256 • NPM1G +41.0077 • LDCE 224 NED049 | |
NGC 999 is a bar-spiral galaxy of the Hubble type SBa in the constellation Andromeda in the northern sky . It is estimated to be 202 million light years away from the Milky Way and has a diameter of around 70,000 ly.
In the same area of the sky are the galaxies NGC 995 , NGC 996 , NGC 1000 , NGC 1001 .
The object was discovered by Édouard Stephan on December 8, 1871 .