RA 310.0382° · Dec -0.8709° · star
5 more points to reach Rare.
HIP 101991 is an uncommon variable star. It lies about 280.9 light-years from Earth, sits in the constellation Aqr, shines at apparent magnitude 11.42 and has spectral type K5IV-Vvar.
Its spectrum reads K5IV-Vvar — a K-type star. Orange K dwarfs are the marathon runners of the galaxy, burning steadily for tens of billions of years.
Look for HIP 101991 in the constellation Aqr. At apparent magnitude 11.42, a small backyard telescope will bring it into view.
Like any astronomical target, HIP 101991 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.
HIP 101991 scores 29 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 5 points would lift it into a rarer tier.
That score comes from 6 science badges — Variable star, On the zodiac, Orange K-type star, Subgiant (leaving the main sequence), Strongly variable and A named variable 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.