NGC 4866 is an unbarred lenticular galaxy[5] located roughly 100 million light-years[3] away in the constellation Virgo.

It was first observed by British astronomer Sir William Herschel on January 14, 1787.

[7] On April 1, 2015, a bright source was discovered by the All Sky Automated Survey for SuperNovae (ASAS-SN) program, and was designated ASASSN-15ga.

The source is likely a type Ia supernova.

This lenticular galaxy article is a stub.