| NGC 304 | |
|---|---|
 SDSS image of NGC 304 | |
| Observation data (J2000 epoch) | |
| Constellation | Andromeda |
| Right ascension | 00h 56m 06.0s[1] |
| Declination | +24° 07′ 37″[1] |
| Redshift | 0.016648[1] |
| Heliocentric radial velocity | 4,991 km/s[1] |
| Apparent magnitude (V) | 14.01[1] |
| Characteristics | |
| Type | S0[2] |
| Apparent size (V) | 1.1' × 0.7'[1] |
| Other designations | |
| UGC 00573, CGCG 480-023, MCG +04-03-018, 2MASX J00560603+2407367, 2MASXi J0056060+240735, PGC 3326.[1] | |
NGC 304 is a lenticular galaxy in the constellation Andromeda. It was discovered on October 23, 1878, by Édouard Stephan.[3]
One supernova, SN 2021dnn (type Ia, mag. 15.3), was discovered in NGC 304 on 22 February, 2021.[4]
- ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 0304. Retrieved September 2, 2016.
- ^ "NGC 304". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved December 31, 2016.
- ^ "New General Catalog Objects: NGC 300 - 349". Cseligman. Retrieved October 19, 2016.
- ^ Transient Name Server entry for SN 2021dnn. Retrieved 23 March 2023.