RA 279.9844° · Dec 51.0928° · star
10 more points to reach Rare.
HD 172884 is an uncommon variable star. It lies about 383.3 light-years from Earth, sits in the constellation Dra, shines at apparent magnitude 8.77 and has spectral type G5....
Its spectrum reads G5... — a G-type star: the very same spectral class as our own Sun.
Look for HD 172884 in the constellation Dra. At apparent magnitude 8.77, it is an easy target for binoculars.
Like any astronomical target, HD 172884 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 172884 scores 24 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 10 points would lift it into a rarer tier.
That score comes from 5 science badges — Variable star, Never sets (northern circumpolar), Sun-like G-type star, Gently variable and A named variable 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.