NGC 317
| NGC 317 | |
|---|---|
 SDSS image of NGC 317 | |
| Observation data (J2000 epoch) | |
| 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 of interacting galaxies, consisting of a lenticular galaxy NGC 317A (also designated as PGC 3442) and a spiral galaxy NGC 317B (also designated as PGC 3445), in the constellation Andromeda. It was discovered on October 1, 1885 by Lewis Swift.[2]
Two supernovae have been observed in NGC 317B: SN 1999gl (type II, mag. 16.2),[3] and SN 2014dj (type Ic, mag. 17).[4]
References
- ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 0317. Retrieved September 2, 2016.
- ^ "New General Catalog Objects: NGC 300 - 349". Cseligman. Retrieved October 26, 2016.
- ^ Transient Name Server entry for SN 1999gl. Retrieved 31 March 2023.
- ^ Transient Name Server entry for SN 2014dj. Retrieved 31 March 2023.
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