RA 94.7577° · Dec 17.3253° · star
1 more point to reach Rare.
HR 2258 is an uncommon variable star. It lies about 849.4 light-years from Earth, sits in the constellation Ori, shines at apparent magnitude 6.27 and has spectral type B9IIIsp....
Its spectrum reads B9IIIsp... — 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 HR 2258 in the constellation Ori. At apparent magnitude 6.27, it is an easy target for binoculars.
Like any astronomical target, HR 2258 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.
HR 2258 scores 33 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 1 point would lift it into a rarer tier.
That score comes from 7 science badges — Variable star, In Orion's hunting ground, Hot blue B-type star, Giant star, Blue-white star, Barely variable (under 0.05 mag) 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.