RA 260.3280° · Dec -62.9182° · star
10 more points to reach Epic.
HD 156359 is a rare star. It sits in the constellation Ara, shines at apparent magnitude 9.67 and has spectral type O9III.
Its spectrum reads O9III — 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 156359 in the constellation Ara. At apparent magnitude 9.67, a small backyard telescope will bring it into view.
Like any astronomical target, HD 156359 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 156359 scores 40 points on Spacedle's rarity scale, which places it in the rare tier. Another 10 points would lift it into a rarer tier.
That score comes from 4 science badges — Star, Blazing O-type star, Giant 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.