RA 169.0150° · Dec 52.7765° · star
6 more points to reach Uncommon.
GL Gl 421.1B is a common star. It lies about 141.1 light-years from Earth, sits in the constellation UMa, shines at apparent magnitude 7.9 and has spectral type F2.
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 421.1B in the constellation UMa. At apparent magnitude 7.9, it is an easy target for binoculars.
Like any astronomical target, GL Gl 421.1B 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 421.1B scores 16 points on Spacedle's rarity scale, which places it in the common tier. Another 6 points would lift it into a rarer tier.
That score comes from 4 science badges — Star, Binary star, Never sets (northern circumpolar) and Yellow-white F-type star — 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.