NGC 157 is an intermediate spiral galaxy in the constellation of Cetus. The compiler of the New General Catalogue, John Louis Emil Dreyer noted that NGC 157 was "pretty bright, large, extended, between 2 considerably bright stars". From Wikipedia
Periodic brightness fluctuations in supernova SN 2022jli suggest the presence of a compact object interacting with a companion star, marking a significant breakthrough in understanding stellar evolution.
