RA 122.7062° · Dec 74.9661° · star
12 more points to reach Epic.
HIP 40047 is a rare star. It lies about 441.3 light-years from Earth, sits in the constellation Cam, shines at apparent magnitude 9.55 and has spectral type O5pvar.
Its spectrum reads O5pvar — 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 HIP 40047 in the constellation Cam. At apparent magnitude 9.55, a small backyard telescope will bring it into view.
Like any astronomical target, HIP 40047 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.
HIP 40047 scores 38 points on Spacedle's rarity scale, which places it in the rare tier. Another 12 points would lift it into a rarer tier.
That score comes from 4 science badges — Star, Never sets (northern circumpolar), Blazing O-type star and Blue-white 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.