RA 234.3744° · Dec -18.1687° · star
5 more points to reach Uncommon.
HD 139220 is a common star. It lies about 1,160.7 light-years from Earth, sits in the constellation Lib, shines at apparent magnitude 10.23 and has spectral type F5/F6V.
Its spectrum reads F5/F6V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
Look for HD 139220 in the constellation Lib. At apparent magnitude 10.23, a small backyard telescope will bring it into view.
Like any astronomical target, HD 139220 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 139220 scores 17 points on Spacedle's rarity scale, which places it in the common tier. Another 5 points would lift it into a rarer tier.
That score comes from 5 science badges — Star, Distant (over 1,000 light-years), On the zodiac, Yellow-white F-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.