RA 349.5195° · Dec 59.8592° · star
13 more points to reach Epic.
HD 240250 is a rare star. It lies about 3,229.3 light-years from Earth, sits in the constellation Cas, shines at apparent magnitude 8.78 and has spectral type B9Iab.
Its spectrum reads B9Iab — 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 240250 in the constellation Cas. At apparent magnitude 8.78, it is an easy target for binoculars.
Like any astronomical target, HD 240250 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 240250 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.