RA 303.2401° · Dec -58.7790° · star
5 more points to reach Uncommon.
HD 191439 is a common variable star. It lies about 744.6 light-years from Earth, sits in the constellation Pav, shines at apparent magnitude 8.88 and has spectral type Ap CrEu(Sr).
Its spectrum reads Ap CrEu(Sr) — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.
Look for HD 191439 in the constellation Pav. At apparent magnitude 8.88, it is an easy target for binoculars.
Like any astronomical target, HD 191439 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 191439 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 4 science badges — Variable star, White A-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.