RA 271.4952° · Dec -14.1981° · star
25 more points to reach Anomaly.
HD 165319 is an epic star. It lies about 2,051.3 light-years from Earth, sits in the constellation Ser, shines at apparent magnitude 7.92 and has spectral type O9.5Iab.
Its spectrum reads O9.5Iab — 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 HD 165319 in the constellation Ser. At apparent magnitude 7.92, it is an easy target for binoculars.
Like any astronomical target, HD 165319 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.
HD 165319 scores 53 points on Spacedle's rarity scale, which places it in the epic tier. Another 25 points would lift it into a rarer tier.
That score comes from 4 science badges — Star, Distant (over 1,000 light-years), Blazing O-type star and Supergiant — 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.