NGC 6993


NGC 6993 is a large barred spiral galaxy in the constellation of Capricornus. Its velocity with respect to the cosmic microwave background is, which corresponds to a Hubble distance of. It was discovered by American astronomer Francis Leavenworth on 8 July 1885.
NGC 6993 has a possible active galactic nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.

Galaxy group

NGC 6993 is a member of a small group of three galaxies known as LDC 1426. The other two galaxies are MCG -04-49-005 and MCG -04-49-004.

Supernova

One Supernova has been observed in NGC 6993:SN 2020pvb was discovered by Pan-STARRS on 18 July 2020. This supernova was initially detected during a pre-explosion outburst, with the actual supernova occurring several weeks later. Spectral signatures and a plateau-like light curve led scientists to classify SN 2020pvb as Type IIn-P, similar to SN 1994W, SN 2009kn, and SN 2011ht.