RA 278.7290° · Dec -30.7298° · star
10 more points to reach Rare.
HD 171239 is an uncommon star. It lies about 244.7 light-years from Earth, sits in the constellation Sgr, shines at apparent magnitude 8.68 and has spectral type G3V.
Its spectrum reads G3V — a G-type star: the very same spectral class as our own Sun.
Look for HD 171239 in the constellation Sgr. At apparent magnitude 8.68, it is an easy target for binoculars.
Like any astronomical target, HD 171239 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 171239 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 — Star, Toward the galactic centre, On the zodiac, Sun-like G-type star and Main-sequence 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.