RA 227.9603° · Dec 61.8570° · star
7 more points to reach Rare.
HD 135421 is an uncommon variable star. It lies about 230 light-years from Earth, sits in the constellation Dra, shines at apparent magnitude 8.04 and has spectral type F7V.
Its spectrum reads F7V — an F-type star — a little hotter, whiter and shorter-lived than the Sun.
Look for HD 135421 in the constellation Dra. At apparent magnitude 8.04, it is an easy target for binoculars.
Like any astronomical target, HD 135421 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 135421 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 6 science badges — Variable star, Never sets (northern circumpolar), Yellow-white F-type star, Main-sequence 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.