RA 6.7202° · Dec 70.1424° · star
8 more points to reach Rare.
GL Gl 21 is an uncommon star. It lies about 53.7 light-years from Earth, sits in the constellation Cep, shines at apparent magnitude 10.52 and has spectral type M0.
Its spectrum reads M0 — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.
Look for GL Gl 21 in the constellation Cep. At apparent magnitude 10.52, a small backyard telescope will bring it into view.
Like any astronomical target, GL Gl 21 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 21 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, Never sets (northern circumpolar), Cool red M-type star, Deep red star and Red dwarf — 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.