RA 332.5038° · Dec 4.0986° · star
4 more points to reach Common.
HD 210391 is a trash star. It lies about 229.8 light-years from Earth, sits in the constellation Peg, shines at apparent magnitude 7.63 and has spectral type G0.
Its spectrum reads G0 — a G-type star: the very same spectral class as our own Sun.
Look for HD 210391 in the constellation Peg. At apparent magnitude 7.63, it is an easy target for binoculars.
Like any astronomical target, HD 210391 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 210391 scores 11 points on Spacedle's rarity scale, which places it in the trash tier. Another 4 points would lift it into a rarer tier.
That score comes from 2 science badges — Star and Sun-like G-type 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.