RA 233.1819° · Dec 10.9683° · star
6 more points to reach Uncommon.
HD 138573 is a common star. It lies about 98.7 light-years from Earth, sits in the constellation Ser, shines at apparent magnitude 7.22 and has spectral type G5IV-V.
Its spectrum reads G5IV-V — a G-type star: the very same spectral class as our own Sun.
Look for HD 138573 in the constellation Ser. At apparent magnitude 7.22, it is an easy target for binoculars.
Like any astronomical target, HD 138573 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 138573 scores 16 points on Spacedle's rarity scale, which places it in the common tier. Another 6 points would lift it into a rarer tier.
That score comes from 3 science badges — Star, Sun-like G-type star and Subgiant (leaving the main sequence) — 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.