
Red dwarf star in the constellation Libra
via Wikipedia infobox
Gliese 581 (/ˈɡliːzə/) is a red dwarf star of spectral type M3V which hosts a planetary system, 20.5 light-years (6.3 parsecs) away from Earth in the constellation Libra. Its estimated mass is about a third of that of the Sun, and it is the 101st closest known star system to the Sun. Gliese 581 is one of the oldest, least active M dwarfs known. Its low stellar activity improves the likelihood of its three planets retaining significant atmospheres, and lessens the sterilizing impact of stellar flares.
History of observations
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).