RA 254.4171° · Dec 9.3750° · star
7 more points to reach Rare.
27Kap Oph is an uncommon variable star. It lies about 91.5 light-years from Earth, sits in the constellation Oph, shines at apparent magnitude 3.19 and has spectral type K2IIIvar.
Its spectrum reads K2IIIvar — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
Look for 27Kap Oph in the constellation Oph. At apparent magnitude 3.19, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, 27Kap Oph 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.
27Kap Oph scores 27 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 7 points would lift it into a rarer tier.
That score comes from 6 science badges — Variable star, Naked-eye visible, Orange K-type star, Giant star, Barely variable (under 0.05 mag) 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.