RA 188.3709° · Dec 69.7882° · star
1 more point to reach Epic.
5Kap Dra is a rare variable star. It lies about 490.5 light-years from Earth, sits in the constellation Dra, shines at apparent magnitude 3.85 and has spectral type B6IIIp.
Its spectrum reads B6IIIp — 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 5Kap Dra in the constellation Dra. At apparent magnitude 3.85, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, 5Kap Dra 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.
5Kap Dra 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 9 science badges — Variable star, Naked-eye visible, Never sets (northern circumpolar), Hot blue B-type star, Giant star, Blue-white star, Intrinsically luminous (Mv < −2) and Barely variable (under 0.05 mag) — 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.