RA 320.6196° · Dec 42.3962° · star
2 more points to reach Rare.
HIP 105539 is an uncommon variable star. It lies about 1,315.1 light-years from Earth, sits in the constellation Cyg, shines at apparent magnitude 9.19 and has spectral type N0v.
Its spectrum reads N0v — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.
Look for HIP 105539 in the constellation Cyg. At apparent magnitude 9.19, a small backyard telescope will bring it into view.
Like any astronomical target, HIP 105539 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 105539 scores 32 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 2 points would lift it into a rarer tier.
That score comes from 5 science badges — Variable star, Distant (over 1,000 light-years), Deep red star, 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.