RA 45.2241° · Dec 59.6660° · star
9 more points to reach Rare.
HD 18473 is an uncommon variable star. It lies about 787.8 light-years from Earth, sits in the constellation Cas, shines at apparent magnitude 7.35 and has spectral type B9p SB.
Its spectrum reads B9p SB — 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 18473 in the constellation Cas. At apparent magnitude 7.35, it is an easy target for binoculars.
Like any astronomical target, HD 18473 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 18473 scores 25 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 9 points would lift it into a rarer tier.
That score comes from 6 science badges — Variable star, Never sets (northern circumpolar), 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.