RA 297.8788° · Dec 27.4602° · star
5 more points to reach Rare.
HD 187921 is an uncommon variable star. It sits in the constellation Vul, shines at apparent magnitude 7.34 and has spectral type K0var.
Its spectrum reads K0var — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
Look for HD 187921 in the constellation Vul. At apparent magnitude 7.34, it is an easy target for binoculars.
Like any astronomical target, HD 187921 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 187921 scores 29 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 5 points would lift it into a rarer tier.
That score comes from 5 science badges — Variable star, Orange K-type star, Deep red star, Strongly 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.