RA 38.9325° · Dec 68.3678° · star
12 more points to reach Rare.
HD 15784 is an uncommon star. It lies about 543.6 light-years from Earth, sits in the constellation Cas, shines at apparent magnitude 6.64 and has spectral type F4II.
Its spectrum reads F4II — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
Look for HD 15784 in the constellation Cas. At apparent magnitude 6.64, it is an easy target for binoculars.
Like any astronomical target, HD 15784 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 15784 scores 22 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 12 points would lift it into a rarer tier.
That score comes from 4 science badges — Star, Never sets (northern circumpolar), Yellow-white F-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.