RA 332.9897° · Dec 50.1962° · star
3 more points to reach Common.
HD 210819 is a trash star. It lies about 2,117.9 light-years from Earth, sits in the constellation Lac, shines at apparent magnitude 7.22 and has spectral type F0.
Its spectrum reads F0 — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
Look for HD 210819 in the constellation Lac. At apparent magnitude 7.22, it is an easy target for binoculars.
Like any astronomical target, HD 210819 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 210819 scores 12 points on Spacedle's rarity scale, which places it in the trash tier. Another 3 points would lift it into a rarer tier.
That score comes from 3 science badges — Star, Distant (over 1,000 light-years) and Yellow-white F-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.