RA 79.0756° · Dec 34.3123° · star
40 more points to reach Mythic.
HR 1712 is an anomaly variable star. It lies about 1,874.5 light-years from Earth, sits in the constellation Aur, shines at apparent magnitude 5.99 and has spectral type O9.5Vvar.
Its spectrum reads O9.5Vvar — 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 HR 1712 in the constellation Aur. At apparent magnitude 5.99, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, HR 1712 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.
HR 1712 scores 80 points on Spacedle's rarity scale, which places it in the anomaly tier. Another 40 points would lift it into a rarer tier.
That score comes from 9 science badges — Variable star, Distant (over 1,000 light-years), Naked-eye visible, Blazing O-type star, Main-sequence star, Intrinsically luminous (Mv < −2), Gently variable and Fades out of naked-eye view — 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.