RA 351.7390° · Dec 49.5164° · star
2 more points to reach Uncommon.
HD 220870 is a common variable star. It sits in the constellation And, shines at apparent magnitude 9.1 and has spectral type N0.
Its spectrum reads N0 — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.
Look for HD 220870 in the constellation And. At apparent magnitude 9.1, a small backyard telescope will bring it into view.
Like any astronomical target, HD 220870 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 220870 scores 20 points on Spacedle's rarity scale, which places it in the common tier. Another 2 points would lift it into a rarer tier.
That score comes from 4 science badges — Variable 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.