spiral galaxy in the constellation Pisces
via Wikipedia infobox
NGC 138 is a spiral galaxy in the constellation Pisces. It was discovered on August 29, 1864, by Albert Marth.
One supernova has been observed in NGC 138: SN 2023lfo (type Ia, mag. 17.2).
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).