RA 281.1389° · Dec -7.1106° · star
2 more points to reach Uncommon.
HD 173219 is a common variable star. It sits in the constellation Sct, shines at apparent magnitude 7.82 and has spectral type B1:V:npe.
Its spectrum reads B1:V:npe — 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 173219 in the constellation Sct. At apparent magnitude 7.82, it is an easy target for binoculars.
Like any astronomical target, HD 173219 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 173219 scores 20 points on Spacedle's rarity scale, which places it in the common tier. Another 2 points would lift it into a rarer tier.
That score comes from 5 science badges — Variable star, Hot blue B-type star, Main-sequence star, 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.