NGC 31
| Galaxy data from NGC 31 |
|
|---|---|
|
|
| AladinLite | |
| Constellation | Phoenix |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 10 m 38.4 s |
| declination | -56 ° 59 ′ 11 ″ |
| Appearance | |
| Morphological type | SB (rs) cd |
| Brightness (visual) | 14.3 mag |
| Brightness (B-band) | 15.0 mag |
| Angular expansion | 1.3 ′ × 0.7 ′ |
| Position angle | 2.3 ° |
| Surface brightness | 14.0 mag / arcmin² |
| Physical data | |
| Redshift | 0.032025 +/- 0.000150 |
| Radial velocity | 9601 +/- 45 km / s |
|
Stroke distance v rad / H 0 |
(425 ± 30) x 10 6 ly (130.3 ± 9.1) Mpc |
| history | |
| discovery | John Herschel |
| Discovery date | October 28, 1834 |
| Catalog names | |
| NGC 31 • PGC 751 • ESO 149-020 • IRAS F00081-5715 • 2MASX J00103838-5659114 • SGC 000809-5715.8 • GC 15 • h 2311 • GALEX ASC J001038.55-565909.6 | |
NGC 31 is a spiral galaxy of Hubble type Sc in the constellation Phoenix on southern sky . It is estimated to be 425 million light years from the Milky Way and about 165,000 light years in diameter. As with the neighboring galaxy NGC 28 , NGC 31 could be an unregistered member of the Abell 2731 galaxy cluster .
The galaxies NGC 25 and NGC 37 are located in the same area of the sky .
The object was discovered on October 28, 1834 by the British astronomer John Herschel .
Web links
Commons : NGC 31 - collection of images, videos and audio files
