RA 224.1155° · Dec 17.9183° · star
8 more points to reach Rare.
GL GJ 3879B is an uncommon star. It lies about 54.4 light-years from Earth, sits in the constellation Boo, shines at apparent magnitude 18.6 and has spectral type M7 :.
It is a binary: two stars orbiting a shared centre of mass. More than half of all the 'stars' you can see are actually multiple systems.
Look for GL GJ 3879B in the constellation Boo. At apparent magnitude 18.6, it takes a larger telescope or a long-exposure image to capture.
Like any astronomical target, GL GJ 3879B is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.
GL GJ 3879B scores 26 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 8 points would lift it into a rarer tier.
That score comes from 5 science badges — Star, Binary star, Cool red M-type star, Red dwarf and Intrinsically feeble (Mv > +12) — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.