Pair of spiral galaxies in Andromeda
| NGC 317 |
|---|
 |
| Observation data (J2000 epoch) |
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| Constellation | Andromeda |
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| Right ascension | 00h 57m 39.7s[1] |
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| Declination | +43° 47′ 47″[1] |
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| Redshift | 0.018109[1] |
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| Heliocentric radial velocity | 5,429 km/s[1] |
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| Apparent magnitude (V) | 13.8[1] |
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| Characteristics |
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| Type | S0 + Sb[1] |
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| Other designations |
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| 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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