Astronomy:NGC 317
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Short description: Pair of spiral galaxies in Andromeda
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] |
Helio 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
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 "NASA/IPAC Extragalactic Database". Results for NGC 0317. http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+317&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
- ↑ "New General Catalog Objects: NGC 300 - 349". Cseligman. http://cseligman.com/text/atlas/ngc3.htm#317.
- ↑ Transient Name Server entry for SN 1999gl. Retrieved 31 March 2023.
- ↑ Transient Name Server entry for SN 2014dj. Retrieved 31 March 2023.
![]() | Original source: https://en.wikipedia.org/wiki/NGC 317.
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