RA 183.9516° · Dec -17.5419° · star
14 more points to reach Epic.
Gienah is a rare star. It lies about 153.6 light-years from Earth, sits in the constellation Crv, shines at apparent magnitude 2.58 and has spectral type B8III.
Its spectrum reads B8III — a blue-white B-type star, with a surface tens of thousands of degrees hot and a life measured in tens of millions of years.
Look for Gienah in the constellation Crv. At apparent magnitude 2.58, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, Gienah 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.
Gienah scores 36 points on Spacedle's rarity scale, which places it in the rare tier. Another 14 points would lift it into a rarer tier.
That score comes from 6 science badges — Star, Naked-eye visible, Has a proper name, Hot blue B-type star, Giant star and Blue-white 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.