RA 178.3898° · Dec -62.8522° · star
1 more point to reach Uncommon.
HD 309218 is a common variable star. It lies about 2,001 light-years from Earth, sits in the constellation Cen, shines at apparent magnitude 10.12 and has spectral type F5.
Its spectrum reads F5 — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
Look for HD 309218 in the constellation Cen. At apparent magnitude 10.12, a small backyard telescope will bring it into view.
Like any astronomical target, HD 309218 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 309218 scores 21 points on Spacedle's rarity scale, which places it in the common tier. Another 1 point would lift it into a rarer tier.
That score comes from 5 science badges — Variable star, Distant (over 1,000 light-years), Yellow-white F-type 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.