NGC 5939

NGC 5939 is a spiral galaxy in the constellation of Ursa Minor. Its velocity with respect to the cosmic microwave background is 6684 ± 4 km/s, which corresponds to a Hubble distance of 98.59 ± 6.90 Mpc. It was discovered by American astronomer Lewis Swift on 11 July 1883.

Supernovae

Three supernovae have been observed in NGC 5939:SN 2004ax was discovered by the Lick Observatory Supernova Search on 21 March 2004. The spectrum indicated this might be a calcium-rich supernova.SN 2019gss was discovered by the Zwicky Transient Facility on 30 may 2019.SN 2023gps was discovered by the Automatic Learning for the Rapid Classification of Events on 23 April 2023.

NGC 5939 Group

NGC 5939 is part of a trio of galaxies: The other two galaxies in the group are IC 1129 and UGC 9896.