NGC 1233

NGC1233 is a spiral galaxy in the constellation of Perseus. Its velocity with respect to the cosmic microwave background is 4218 ± 14km/s, which corresponds to a Hubble distance of. In addition, three non redshift measurements give a distance of. The galaxy was discovered by French astronomer Édouard Stephan on 10 December 1871. It is also thought to have been observed by Lewis Swift on 21 October 1886, and later listed as NGC 1235.

Supernovae

Three supernovae have been observed in NGC1233:SN2009lj was discovered by the Lick Observatory Supernova Search on 13 November 2009.SN2017lf was discovered by the Tsinghua-NAOC Transient Survey on 22 January 2017.SN2022bqi was discovered by Giancarlo Cortini on 7 February 2022.

NGC 1233 is a part of the 3 member NGC 1207 group. The third galaxy in the group is UGC 2604.