RA 276.6397° · Dec -9.2017° · star
2 more points to reach Epic.
HD 169753 is a rare variable star. It lies about 2,265 light-years from Earth, sits in the constellation Sct, shines at apparent magnitude 7.52 and has spectral type B3Ib.
Its spectrum reads B3Ib — a blue-white B-type star, with a surface tens of thousands of degrees hot and a life measured in tens of millions of years.
Look for HD 169753 in the constellation Sct. At apparent magnitude 7.52, it is an easy target for binoculars.
Like any astronomical target, HD 169753 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 169753 scores 48 points on Spacedle's rarity scale, which places it in the rare tier. Another 2 points would lift it into a rarer tier.
That score comes from 6 science badges — Variable star, Distant (over 1,000 light-years), Hot blue B-type star, Supergiant, Strongly 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.