RA 83.0618° · Dec -4.5184° · star
14 more points to reach Epic.
HD 36540 is a rare variable star. It lies about 1,469.2 light-years from Earth, sits in the constellation Ori, shines at apparent magnitude 8.15 and has spectral type B7III.
Its spectrum reads B7III — a blue-white B-type star, with a surface tens of thousands of degrees hot and a life measured in tens of millions of years.
Look for HD 36540 in the constellation Ori. At apparent magnitude 8.15, it is an easy target for binoculars.
Like any astronomical target, HD 36540 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 36540 scores 36 points on Spacedle's rarity scale, which places it in the rare tier. Another 14 points would lift it into a rarer tier.
That score comes from 7 science badges — Variable star, Distant (over 1,000 light-years), In Orion's hunting ground, Hot blue B-type star, Giant star, Gently 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.