RA 290.8737° · Dec -34.5269° · star
6 more points to reach Rare.
HD 181842 is an uncommon variable star. It lies about 226.8 light-years from Earth, sits in the constellation Sgr, shines at apparent magnitude 8.83 and has spectral type K2V + (G).
Its spectrum reads K2V + (G) — 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 181842 in the constellation Sgr. At apparent magnitude 8.83, it is an easy target for binoculars.
Like any astronomical target, HD 181842 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 181842 scores 28 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 6 points would lift it into a rarer tier.
That score comes from 7 science badges — Variable star, Toward the galactic centre, On the zodiac, Orange K-type star, Main-sequence 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.