RA 1.2117° · Dec 50.2349° · star
9 more points to reach Rare.
HIP 390 is an uncommon variable star. It lies about 637 light-years from Earth, sits in the constellation Cas, shines at apparent magnitude 11.67 and has spectral type F7.
Its spectrum reads F7 — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
Look for HIP 390 in the constellation Cas. At apparent magnitude 11.67, a small backyard telescope will bring it into view.
Like any astronomical target, HIP 390 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.
HIP 390 scores 25 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 9 points would lift it into a rarer tier.
That score comes from 5 science badges — Variable star, Never sets (northern circumpolar), Yellow-white F-type star, Strongly variable and A named variable 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.