RA 94.0166° · Dec 59.2150° · star
7 more points to reach Rare.
HD 42721 is an uncommon star. It lies about 597.4 light-years from Earth, sits in the constellation Cam, shines at apparent magnitude 6.59 and has spectral type G8II-III.
Its spectrum reads G8II-III — a G-type star: the very same spectral class as our own Sun.
Look for HD 42721 in the constellation Cam. At apparent magnitude 6.59, it is an easy target for binoculars.
Like any astronomical target, HD 42721 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 42721 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 4 science badges — Star, Never sets (northern circumpolar), Sun-like G-type star and Bright giant — 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.