spiral galaxy in the constellation Ursa Major
via Wikipedia infobox
NGC 3982 is an intermediate spiral galaxy approximately 68 million light-years away in the constellation Ursa Major. It was discovered by German-British astronomer William Herschel on April 14, 1789, and misclassified as a planetary nebula. NGC 3982 is a part of the M109 Group.
At an apparent magnitude of 12.0, NGC 3982 needs a telescope to be viewed. Using small telescopes, the galaxy appears as a very faint, diffuse patch of light, with its central region appearing as a slightly brighter diffuse ball.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).