IC 31
Galaxy IC 31 |
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SDSS recording | |
AladinLite | |
Constellation | fishes |
Position equinox : J2000.0 , epoch : J2000.0 |
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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 .