RA 56.6703° · Dec 32.2902° · star
1 more point to reach Common.
HD 23478 is a trash star. It lies about 653.6 light-years from Earth, sits in the constellation Per, shines at apparent magnitude 6.68 and has spectral type B3IV....
Its spectrum reads B3IV... — 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 23478 in the constellation Per. At apparent magnitude 6.68, it is an easy target for binoculars.
Like any astronomical target, HD 23478 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 23478 scores 14 points on Spacedle's rarity scale, which places it in the trash tier. Another 1 point would lift it into a rarer tier.
That score comes from 3 science badges — Star, Hot blue B-type star and Subgiant (leaving the main sequence) — 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.