NGC 820 is a spiral galaxy located in the constellation Aries about 210 million light-years from the Milky Way. It was discovered by British astronomer John Herschel on 7 September 1828.
NGC 820 Group
NGC 820 is the largest and brightest of a trio of galaxies. The other two galaxies in the NGC 820 group (also known as LGG 48) are UGC 1630 and UGC 1689.
Supernova
One supernova has been observed in NGC 820: SN 2002ea (Type IIn, mag. 17.7) was discovered on 21 July 2002 by Tim Puckett and Jack Newton.
