| NGC 317 | |
|---|---|
 SDSS image of NGC 317 | |
| Observation data (J2000epoch) | |
| Constellation | Andromeda |
| Right ascension | 00h 57m 39.7s[1] |
| Declination | +43° 47′ 47″[1] |
| Redshift | 0.018109[1] |
| Heliocentric radial velocity | 5,429 km/s[1] |
| Apparent magnitude (V) | 13.8[1] |
| Characteristics | |
| Type | S0 + Sb[1] |
| Other designations | |
| CGCG 536-013,PGC 3442 + PGC 3445.[1] | |
NGC 317 is a pair ofinteracting galaxies, consisting of alenticular galaxy NGC 317A (also designated as PGC 3442) and aspiral galaxy NGC 317B (also designated as PGC 3445), in the constellationAndromeda. It was discovered on October 1, 1885 byLewis Swift.[2]
Twosupernovae have been observed in NGC 317B: SN 1999gl (type II, mag. 16.2),[3] and SN 2014dj (type Ic, mag. 17).[4]
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