RA 182.8782° · Dec -58.2574° · star
6 more points to reach Uncommon.
HD 105921 is a common star. It lies about 317.3 light-years from Earth, sits in the constellation Cru, shines at apparent magnitude 8.9 and has spectral type F8/G0V.
Its spectrum reads F8/G0V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
Look for HD 105921 in the constellation Cru. At apparent magnitude 8.9, it is an easy target for binoculars.
Like any astronomical target, HD 105921 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 105921 scores 16 points on Spacedle's rarity scale, which places it in the common tier. Another 6 points would lift it into a rarer tier.
That score comes from 4 science badges — Star, Under the Southern Cross, Yellow-white F-type star and Main-sequence 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.