RA 322.7471° · Dec 60.4594° · star
1 more point to reach Epic.
HR 8243 is a rare star. It lies about 1,510 light-years from Earth, sits in the constellation Cep, shines at apparent magnitude 5.53 and has spectral type B1II.
Its spectrum reads B1II — 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 8243 in the constellation Cep. At apparent magnitude 5.53, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, HR 8243 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 8243 scores 49 points on Spacedle's rarity scale, which places it in the rare tier. Another 1 point would lift it into a rarer tier.
That score comes from 7 science badges — Star, Distant (over 1,000 light-years), Naked-eye visible, Never sets (northern circumpolar), Hot blue B-type star, Bright giant 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.