RA 272.1892° · Dec 9.4522° · star
12 more points to reach Common.
HD 166097 is a trash star. It sits in the constellation Oph, shines at apparent magnitude 9.71 and has spectral type R....
Its spectrum reads R... — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.
Look for HD 166097 in the constellation Oph. At apparent magnitude 9.71, a small backyard telescope will bring it into view.
Like any astronomical target, HD 166097 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 166097 scores 3 points on Spacedle's rarity scale, which places it in the trash tier. Another 12 points would lift it into a rarer tier.
That score comes from 1 science badge — 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.