NGC 7331

**NGC 7331**
Observation data: J2000 epoch
Spiral Galaxy NGC 7331 in infrared by the SST
Constellation:	Pegasus
Right ascension:	22^h 37^m 04.1^s^[1]
Declination:	+34° 24′ 56″^[1]
Redshift:	816 ± 1 km/s^[1]
Distance:	43 ± 3 Mly^[2]
Type:	SA(s)b^[1]
Apparent dimensions (V):	10′.5 × 3′.7^[1]
Apparent magnitude (V):	+10.4^[1]
Notable features:
Other designations
UGC 12113, PGC 69327^[1]
See also: Galaxy, List of galaxies

NGC 7331 is a spiral galaxy about 43 million light-years away in the constellation Pegasus. It was discovered by William Herschel in 1784.^{[citation needed]}

[edit] Supernova

SN 1959D, a Type IIL supernova,^[3] is the only supernova that has been identified within NGC 7331.^[1] The supernova was discovered by Milton Humason and H. S. Gates in a survey at Palomar Observatory.^[4]

^ ^a ^b ^c ^d ^e ^f ^g ^h NASA/IPAC Extragalactic Database. Results for NGC 7331. Retrieved on 2006-11-10.
^ J. L. Tonry, A. Dressler, J. P. Blakeslee, E. A. Ajhar, A. B. Fletcher, G. A. Luppino, M. R. Metzger, C. B. Moore (2001). "The SBF Survey of Galaxy Distances. IV. SBF Magnitudes, Colors, and Distances". Astrophysical Journal 546 (2): 681-693.
^ NASA/IPAC Extragalactic Database. Results for SN 1959D. Retrieved on 2006-11-10.
^ M. L. Humason, H. S. Gates (1960). "The 1959 Palomar Supernova Search". Publications of the Astronomical Society of the Pacific 72: 208-209.