RA 252.7461° · Dec -26.7810° · star
11 more points to reach Epic.
HD 151831 is a rare variable star. It sits in the constellation Sco, shines at apparent magnitude 10.52 and has spectral type B8/B9Ib.
Its spectrum reads B8/B9Ib — 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 151831 in the constellation Sco. At apparent magnitude 10.52, a small backyard telescope will bring it into view.
Like any astronomical target, HD 151831 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 151831 scores 39 points on Spacedle's rarity scale, which places it in the rare tier. Another 11 points would lift it into a rarer tier.
That score comes from 6 science badges — Variable star, On the zodiac, Hot blue B-type star, Supergiant, 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.