RA 347.7790° · Dec 53.0582° · star
10 more points to reach Anomaly.
HD 218915 is an epic star. It lies about 2,489.7 light-years from Earth, sits in the constellation And, shines at apparent magnitude 7.23 and has spectral type O9.5Iab.
Its spectrum reads O9.5Iab — an O-type star — the hottest, rarest main class there is. Fewer than one star in a million is an O, and none of them lasts long.
Look for HD 218915 in the constellation And. At apparent magnitude 7.23, it is an easy target for binoculars.
Like any astronomical target, HD 218915 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 218915 scores 68 points on Spacedle's rarity scale, which places it in the epic tier. Another 10 points would lift it into a rarer tier.
That score comes from 6 science badges — Star, Distant (over 1,000 light-years), Blazing O-type star, Supergiant, Blue-white star and Intrinsically luminous (Mv < −2) — 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.