RA 45.0327° · Dec -47.4170° · star
2 more points to reach Common.
HD 18851 is a trash star. It lies about 643.3 light-years from Earth, sits in the constellation Eri, shines at apparent magnitude 7.5 and has spectral type A6IV/V.
Its spectrum reads A6IV/V — 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 18851 in the constellation Eri. At apparent magnitude 7.5, it is an easy target for binoculars.
Like any astronomical target, HD 18851 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 18851 scores 13 points on Spacedle's rarity scale, which places it in the trash tier. Another 2 points would lift it into a rarer tier.
That score comes from 3 science badges — Star, White A-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.