RA 355.8055° · Dec 58.9906° · star
13 more points to reach Epic.
HD 240372 is a rare star. It lies about 2,695.5 light-years from Earth, sits in the constellation Cas, shines at apparent magnitude 9.09 and has spectral type B8Ib.
Its spectrum reads B8Ib — 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 240372 in the constellation Cas. At apparent magnitude 9.09, a small backyard telescope will bring it into view.
Like any astronomical target, HD 240372 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 240372 scores 37 points on Spacedle's rarity scale, which places it in the rare tier. Another 13 points would lift it into a rarer tier.
That score comes from 5 science badges — Star, Distant (over 1,000 light-years), Never sets (northern circumpolar), Hot blue B-type star and Supergiant — 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.