RA 92.2607° · Dec -41.1180° · star
1 more point to reach Uncommon.
HD 42503 is a common variable star. It lies about 807.3 light-years from Earth, sits in the constellation Col, shines at apparent magnitude 7.43 and has spectral type A1III/IV.
Its spectrum reads A1III/IV — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.
Look for HD 42503 in the constellation Col. At apparent magnitude 7.43, it is an easy target for binoculars.
Like any astronomical target, HD 42503 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 42503 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, White A-type star, Giant 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.