RA 65.9408° · Dec 6.3790° · star
2 more points to reach Common.
HD 27821 is a trash star. It lies about 520.2 light-years from Earth, sits in the constellation Tau, shines at apparent magnitude 8.69 and has spectral type A7V.
Its spectrum reads A7V — 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 27821 in the constellation Tau. At apparent magnitude 8.69, it is an easy target for binoculars.
Like any astronomical target, HD 27821 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 27821 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 4 science badges — Star, On the zodiac, White A-type star and Main-sequence 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.