RA 162.7725° · Dec -3.0927° · star
12 more points to reach Rare.
HR 4240 is an uncommon star. It lies about 505.7 light-years from Earth, sits in the constellation Sex, shines at apparent magnitude 5.95 and has spectral type K2.
Its spectrum reads K2 — 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 4240 in the constellation Sex. At apparent magnitude 5.95, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, HR 4240 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 4240 scores 22 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 12 points would lift it into a rarer tier.
That score comes from 4 science badges — Star, Naked-eye visible, Orange K-type star and Deep red 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.