RA 173.6770° · Dec 16.7969° · star
7 more points to reach Epic.
90 Leo is a rare star. It lies about 1,896.3 light-years from Earth, sits in the constellation Leo, shines at apparent magnitude 5.95 and has spectral type B4V.
Its spectrum reads B4V — 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 90 Leo in the constellation Leo. At apparent magnitude 5.95, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, 90 Leo 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.
90 Leo scores 43 points on Spacedle's rarity scale, which places it in the rare tier. Another 7 points would lift it into a rarer tier.
That score comes from 8 science badges — Star, Distant (over 1,000 light-years), Naked-eye visible, On the zodiac, Hot blue B-type star, Main-sequence star, Blue-white star and Intrinsically luminous (Mv < −2) — 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.