RA 222.0142° · Dec -63.3139° · star
2 more points to reach Common.
HD 129917 is a trash star. It sits in the constellation Cir, shines at apparent magnitude 10.36 and has spectral type A1IV/V.
Its spectrum reads A1IV/V — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.
Look for HD 129917 in the constellation Cir. At apparent magnitude 10.36, a small backyard telescope will bring it into view.
Like any astronomical target, HD 129917 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 129917 scores 13 points on Spacedle's rarity scale, which places it in the trash tier. Another 2 points would lift it into a rarer tier.
That score comes from 3 science badges — Star, White A-type star and Subgiant (leaving the main sequence) — 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.