RA 8.4210° · Dec -29.5583° · star
2 more points to reach Uncommon.
HR 138 is a common star. It lies about 538.2 light-years from Earth, sits in the constellation Scl, shines at apparent magnitude 5.55 and has spectral type K1III.
Its spectrum reads K1III — 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 138 in the constellation Scl. At apparent magnitude 5.55, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, HR 138 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 138 scores 20 points on Spacedle's rarity scale, which places it in the common tier. Another 2 points would lift it into a rarer tier.
That score comes from 4 science badges — Star, Naked-eye visible, 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.