RA 184.9738° · Dec -62.8542° · star
9 more points to reach Epic.
HD 107209 is a rare variable star. It sits in the constellation Cru, shines at apparent magnitude 6.81 and has spectral type A0Iab.
Its spectrum reads A0Iab — 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 107209 in the constellation Cru. At apparent magnitude 6.81, it is an easy target for binoculars.
Like any astronomical target, HD 107209 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 107209 scores 41 points on Spacedle's rarity scale, which places it in the rare tier. Another 9 points would lift it into a rarer tier.
That score comes from 6 science badges — Variable star, Under the Southern Cross, White A-type star, Supergiant, Barely variable (under 0.05 mag) 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.