RA 224.6715° · Dec -57.8511° · star
3 more points to reach Rare.
HD 131905 is an uncommon variable star. It sits in the constellation Cir, shines at apparent magnitude 8.27 and has spectral type M4III.
Its spectrum reads M4III — 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 HD 131905 in the constellation Cir. At apparent magnitude 8.27, it is an easy target for binoculars.
Like any astronomical target, HD 131905 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.
HD 131905 scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 3 points would lift it into a rarer tier.
That score comes from 6 science badges — Variable star, Cool red M-type star, Giant star, Deep red star, Gently variable and A named variable 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.