RA 269.3221° · Dec -38.7827° · star
11 more points to reach Rare.
HD 163304 is an uncommon star. It lies about 662.9 light-years from Earth, sits in the constellation Sco, shines at apparent magnitude 7.6 and has spectral type B7III.
Its spectrum reads B7III — 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 163304 in the constellation Sco. At apparent magnitude 7.6, it is an easy target for binoculars.
Like any astronomical target, HD 163304 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 163304 scores 23 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 11 points would lift it into a rarer tier.
That score comes from 5 science badges — Star, On the zodiac, Hot blue B-type star, Giant star and Blue-white 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.