IC 31
| Galaxy IC 31 |
|
|---|---|
|
|
| SDSS recording | |
| AladinLite | |
| Constellation | fishes |
|
Position equinox : J2000.0 , epoch : J2000.0 |
|
| Right ascension | 00 h 34 m 24.6 s |
| declination | + 12 ° 16 ′ 05 ″ |
| Appearance | |
| Morphological type | Sat |
| Brightness (visual) | 14.4 mag |
| Brightness (B-band) | 15.3 mag |
| Angular expansion | 1.6 ′ × 0.3 ′ |
| Position angle | 89 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Redshift | 0.031762 ± 0.000070 |
| Radial velocity | 9522 ± 21 km / s |
|
Stroke distance v rad / H 0 |
(431 ± 30) x 10 6 ly (132.1 ± 9.3) Mpc |
| diameter | 200,000 ly |
| history | |
| discovery | Stéphane Javelle |
| Discovery date | November 28, 1893 |
| Catalog names | |
| IC 31 • UGC 340 • PGC 2062 • CGCG 434-023 • 2MASX J00342461 + 1216066 • GALEX ASC J003424.83 + 121605.9 | |
IC 31 is a spiral galaxy from the Hubble type Sa in the constellation fish on the ecliptic . It is around 431 million light years away from the Milky Way and has a diameter of around 200,000 light years .
The property was bought on November 28, 1893 by Stéphane Javelle .