RA 265.4649° · Dec -17.8968° · star
22 more points to reach Anomaly.
HD 160641 is an epic variable star. It sits in the constellation Oph, shines at apparent magnitude 9.85 and has spectral type O9.5-B1Ia(p).
Its spectrum reads O9.5-B1Ia(p) — 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 160641 in the constellation Oph. At apparent magnitude 9.85, a small backyard telescope will bring it into view.
Like any astronomical target, HD 160641 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 160641 scores 56 points on Spacedle's rarity scale, which places it in the epic tier. Another 22 points would lift it into a rarer tier.
That score comes from 5 science badges — Variable star, Blazing O-type star, Supergiant, Gently variable and A named variable 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.