RA 223.3529° · Dec -68.3916° · star
4 more points to reach Common.
HD 130721 is a trash star. It lies about 660.2 light-years from Earth, sits in the constellation Cir, shines at apparent magnitude 7.54 and has spectral type K2IVCN....
Its spectrum reads K2IVCN... — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
Look for HD 130721 in the constellation Cir. At apparent magnitude 7.54, it is an easy target for binoculars.
Like any astronomical target, HD 130721 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.
HD 130721 scores 11 points on Spacedle's rarity scale, which places it in the trash tier. Another 4 points would lift it into a rarer tier.
That score comes from 3 science badges — Star, Orange K-type star and Subgiant (leaving the main sequence) — 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.