RA 90.9588° · Dec 30.1692° · star
3 more points to reach Rare.
HIP 28711 is an uncommon star. It lies about 355.3 light-years from Earth, sits in the constellation Aur, shines at apparent magnitude 10.95 and has spectral type O9V.
Its spectrum reads O9V — 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 28711 in the constellation Aur. At apparent magnitude 10.95, a small backyard telescope will bring it into view.
Like any astronomical target, HIP 28711 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 28711 scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 3 points would lift it into a rarer tier.
That score comes from 3 science badges — Star, Blazing O-type star and Main-sequence 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.