RA 98.4007° · Dec 14.1552° · star
11 more points to reach Rare.
HR 2391 is an uncommon star. It lies about 251.3 light-years from Earth, sits in the constellation Gem, shines at apparent magnitude 5.57 and has spectral type K2III:.
Its spectrum reads K2III: — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
Look for HR 2391 in the constellation Gem. At apparent magnitude 5.57, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, HR 2391 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.
HR 2391 scores 23 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 11 points would lift it into a rarer tier.
That score comes from 5 science badges — Star, Naked-eye visible, On the zodiac, Orange K-type star and Giant 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.