IC 421
Galaxy IC 421 |
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AladinLite | |
Constellation | Orion |
Position equinox : J2000.0 , epoch : J2000.0 |
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Right ascension | 05 h 32 m 08.6 s |
declination | -07 ° 55 ′ 06 ″ |
Appearance | |
Morphological type | SAB (rs) bc |
Brightness (visual) | 14.2 mag |
Brightness (B-band) | 15.0 mag |
Angular expansion | 3.3 ′ × 2.9 ′ |
Position angle | 39 ° |
Surface brightness | 16.5 mag / arcmin² |
Physical data | |
Redshift | 0.011835 ± 0.000013 |
Radial velocity | 3548 ± 4 km / s |
Stroke distance v rad / H 0 |
(153 ± 11) · 10 6 ly (46.9 ± 3.3) Mpc |
history | |
discovery | Williamina Fleming |
Discovery date | June 27, 1888 |
Catalog names | |
IC 421 • PGC 17407 • MCG -01-15-001 • 2MASX J05320852-0755054 • HIPASS J0532-07 |
IC 421 is a bar-spiral galaxy of the Hubble type SBbc in the constellation Orion in the northern sky . It is estimated to be 153 million light years from the Milky Way and about 150,000 light years across .
The type IIP supernova SN 2013fp was observed here.
The object was discovered by Williamina Fleming on June 27, 1888 .