NGC 5090 and NGC 5091


NGC 5090 and NGC 5091 are a set of galaxies approximately away in the constellation Centaurus. They are in the process of colliding and merging with some evidence of tidal disruption of NGC 5091.
NGC 5090 is an elliptical galaxy while NGC 5091 is a barred spiral galaxy. The radial velocity of the nucleus of NGC 5090 has been measured at, while NGC 5091 has a radial velocity of. NGC 5090 is associated with the strong, double radio source PKS 1318-43.

Supernovae

Three supernovae have been observed in NGC 5090:SN 1981C was discovered by Chilean astronomer José Maza Sancho on 2 March 1981.SN 2025cy was discovered by BlackGEM on 1 January 2025.SN 2026bgd was discovered by ATLAS on 24 January 2026.