RA 33.2235° · Dec 35.3221° · star
11 more points to reach Rare.
HD 13521 is an uncommon variable star. It lies about 801.4 light-years from Earth, sits in the constellation Tri, shines at apparent magnitude 9.14 and has spectral type K5.
Its spectrum reads K5 — 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 13521 in the constellation Tri. At apparent magnitude 9.14, a small backyard telescope will bring it into view.
Like any astronomical target, HD 13521 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 13521 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 — Variable star, Orange K-type star, Deep red star, Gently 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.