RA 173.9281° · Dec -14.5935° · star
7 more points to reach Rare.
HD 100764 is an uncommon star. It lies about 945.4 light-years from Earth, sits in the constellation Crt, shines at apparent magnitude 8.77 and has spectral type C....
Its spectrum reads C... — a carbon star, wrapped in so much soot that its light is filtered to a deep ruby red.
Look for HD 100764 in the constellation Crt. At apparent magnitude 8.77, it is an easy target for binoculars.
Like any astronomical target, HD 100764 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 100764 scores 27 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 7 points would lift it into a rarer tier.
That score comes from 2 science badges — Star and Carbon star (sooty red) — 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.