RA 181.0784° · Dec 4.9318° · star
28 more points to reach Anomaly.
HD 104831 is an epic variable star. It lies about 2,265 light-years from Earth, sits in the constellation Vir, shines at apparent magnitude 7.12 and has spectral type M....
Its spectrum reads M... — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.
Look for HD 104831 in the constellation Vir. At apparent magnitude 7.12, it is an easy target for binoculars.
Like any astronomical target, HD 104831 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 104831 scores 50 points on Spacedle's rarity scale, which places it in the epic tier. Another 28 points would lift it into a rarer tier.
That score comes from 9 science badges — Variable star, Distant (over 1,000 light-years), On the zodiac, Cool red M-type star, Deep red star, Red dwarf, Intrinsically luminous (Mv < −2) and Gently variable — 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.