RA 355.4371° · Dec 56.9030° · star
4 more points to reach Uncommon.
HD 240364 is a common star. It lies about 876.8 light-years from Earth, sits in the constellation Cas, shines at apparent magnitude 8.73 and has spectral type M0.
Its spectrum reads M0 — 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 240364 in the constellation Cas. At apparent magnitude 8.73, it is an easy target for binoculars.
Like any astronomical target, HD 240364 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 240364 scores 18 points on Spacedle's rarity scale, which places it in the common tier. Another 4 points would lift it into a rarer tier.
That score comes from 4 science badges — Star, Never sets (northern circumpolar), Cool red M-type star and Red dwarf — 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.