RA 273.2810° · Dec -71.5715° · star
5 more points to reach Uncommon.
HD 165564 is a common star. It lies about 836.3 light-years from Earth, sits in the constellation Aps, shines at apparent magnitude 9.09 and has spectral type G8/K0III.
Its spectrum reads G8/K0III — a G-type star: the very same spectral class as our own Sun.
Look for HD 165564 in the constellation Aps. At apparent magnitude 9.09, a small backyard telescope will bring it into view.
Like any astronomical target, HD 165564 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 165564 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 3 science badges — Star, Sun-like G-type star and Giant 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.