NGC 7321 is a barred spiral galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is , which corresponds to a Hubble distance of . However, seven non-redshift measurements give a closer mean distance of . It was discovered by German-British astronomer William Herschel on 17 November 1784.
NGC 7321 is a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.
Galaxy group According to M. J. Geller and J. P. Huchra, NGC 7321 is a member of a galaxy group which contains two other galaxies: NGC 7316 and .
Supernovae Two supernovae have been observed in NGC 7321: SN 2008gj (TypeIc, mag. 18.2) was discovered by the Lick Observatory Supernova Search (LOSS) on 19 October 2008. SN 2013di (TypeIa, mag. 18.2) was discovered by the Catalina Real-time Transient Survey on 12 June 2013.
See also List of NGC objects (7001–7840)
References
External links