via Wikipedia infobox
NGC 304 is a lenticular galaxy in the constellation Andromeda. It was discovered on October 23, 1878, by Édouard Stephan.
One supernova, SN 2021dnn (type Ia, mag. 15.3), was discovered in NGC 304 on 22 February, 2021.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).