RA 338.5191° · Dec -12.1582° · star
11 more points to reach Rare.
HD 213781 is an uncommon star. It sits in the constellation Aqr, shines at apparent magnitude 9.03 and has spectral type B8/B9III.
Its spectrum reads B8/B9III — a blue-white B-type star, with a surface tens of thousands of degrees hot and a life measured in tens of millions of years.
Look for HD 213781 in the constellation Aqr. At apparent magnitude 9.03, a small backyard telescope will bring it into view.
Like any astronomical target, HD 213781 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 213781 scores 23 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 11 points would lift it into a rarer tier.
That score comes from 5 science badges — Star, On the zodiac, Hot blue B-type star, Giant star and Blue-white 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.