RA 188.1928° · Dec -38.0768° · star
3 more points to reach Rare.
HD 109145 is an uncommon variable star. It lies about 959.3 light-years from Earth, sits in the constellation Cen, shines at apparent magnitude 7.8 and has spectral type M1III.
Its spectrum reads M1III — 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 109145 in the constellation Cen. At apparent magnitude 7.8, it is an easy target for binoculars.
Like any astronomical target, HD 109145 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 109145 scores 31 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 3 points would lift it into a rarer tier.
That score comes from 6 science badges — Variable star, Cool red M-type star, Giant star, Deep red 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.