RA 225.1613° · Dec 47.2774° · star
1 more point to reach Uncommon.
HR 5597 is a common variable star. It lies about 553.7 light-years from Earth, sits in the constellation Boo, shines at apparent magnitude 6.35 and has spectral type B9p SiSrCr.
Its spectrum reads B9p SiSrCr — 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 HR 5597 in the constellation Boo. At apparent magnitude 6.35, it is an easy target for binoculars.
Like any astronomical target, HR 5597 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.
HR 5597 scores 21 points on Spacedle's rarity scale, which places it in the common tier. Another 1 point would lift it into a rarer tier.
That score comes from 5 science badges — Variable star, Hot blue B-type star, Blue-white star, 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.