RA 119.5246° · Dec 7.2135° · star
10 more points to reach Rare.
HR 3103 is an uncommon variable star. It lies about 755 light-years from Earth, sits in the constellation CMi, shines at apparent magnitude 6.42 and has spectral type A0V.
Its spectrum reads A0V — 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 HR 3103 in the constellation CMi. At apparent magnitude 6.42, it is an easy target for binoculars.
Like any astronomical target, HR 3103 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 3103 scores 24 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 10 points would lift it into a rarer tier.
That score comes from 6 science badges — Variable star, White A-type star, Main-sequence star, Blue-white star, Gently variable 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.