RA 344.2743° · Dec -57.4012° · star
5 more points to reach Rare.
HD 216824 is an uncommon variable star. It lies about 726.4 light-years from Earth, sits in the constellation Tuc, shines at apparent magnitude 7.43 and has spectral type M8III.
Its spectrum reads M8III — 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 216824 in the constellation Tuc. At apparent magnitude 7.43, it is an easy target for binoculars.
Like any astronomical target, HD 216824 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 216824 scores 29 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 5 points would lift it into a rarer tier.
That score comes from 5 science badges — Variable star, Cool red M-type star, Giant star, Strongly 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.