via Wikipedia infobox
Coal Sack Nebula The Coalsack Nebula (Southern Coalsack, or simply the Coalsack) is a dark nebula, which is visible to the naked eye as a dark patch obscuring part of the Milky Way east of Acrux (Alpha Crucis) in the constellation of Crux.
General information
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).