NGC 5605

NGC5605 is an intermediate spiral galaxy in the constellation of Libra. Its velocity with respect to the cosmic microwave background is 3635 ± 18km/s, which corresponds to a Hubble distance of. In addition, three non redshift measurements give a farther distance of. The galaxy was discovered by German-British astronomer William Herschel on 11 May 1784.
The SIMBAD database lists NGC5605 as a Seyfert II Galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.

Unique Trio of Supernovae

NGC5605 is the only galaxy known where three supernovae were visible at the same time:SN2022bn was discovered by ATLAS on 5 January 2022.SN 2022ec was discovered by ATLAS on 7 January 2022.SN 2022pv was discovered by ATLAS on 13 January 2022.