RA 291.0766° · Dec 85.3659° · star
7 more points to reach Uncommon.
HD 187216 is a common star. It sits in the constellation Dra, shines at apparent magnitude 9.66 and has spectral type R....
Its spectrum reads R... — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.
Look for HD 187216 in the constellation Dra. At apparent magnitude 9.66, a small backyard telescope will bring it into view.
Like any astronomical target, HD 187216 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 187216 scores 15 points on Spacedle's rarity scale, which places it in the common tier. Another 7 points would lift it into a rarer tier.
That score comes from 3 science badges — Star, Never sets (northern circumpolar) and Deep red 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.