RA 205.1046° · Dec 50.5160° · star
2 more points to reach Common.
GL Gl 521.2B is a trash star. It lies about 82.3 light-years from Earth, sits in the constellation UMa and shines at apparent magnitude 10.46.
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 Gl 521.2B in the constellation UMa. At apparent magnitude 10.46, a small backyard telescope will bring it into view.
Like any astronomical target, GL Gl 521.2B 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 Gl 521.2B scores 13 points on Spacedle's rarity scale, which places it in the trash tier. Another 2 points would lift it into a rarer tier.
That score comes from 3 science badges — Star, Binary star and Never sets (northern circumpolar) — 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.