RA 300.2716° · Dec -7.3644° · star
4 more points to reach Uncommon.
HD 189605 is a common variable star. It lies about 2,218.7 light-years from Earth, sits in the constellation Aql, shines at apparent magnitude 10.27 and has spectral type R4.
Its spectrum reads R4 — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.
Look for HD 189605 in the constellation Aql. At apparent magnitude 10.27, a small backyard telescope will bring it into view.
Like any astronomical target, HD 189605 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 189605 scores 18 points on Spacedle's rarity scale, which places it in the common tier. Another 4 points would lift it into a rarer tier.
That score comes from 4 science badges — Variable star, Distant (over 1,000 light-years), 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.