From Wikipedia, the free encyclopedia
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]
[edit] See also
- M94 - another galaxy with a prominent starburst ring
- NGC 1512 - another galaxy with a prominent starburst ring
[edit] External links
[edit] References
- ^ 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.
