NGC 317 | |
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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]
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]