RA 99.3502° · Dec 6.1354° · star
12 more points to reach Epic.
HR 2422 is a rare variable star. It sits in the constellation Mon, shines at apparent magnitude 6.05 and has spectral type O8e.
Its spectrum reads O8e — an O-type star — the hottest, rarest main class there is. Fewer than one star in a million is an O, and none of them lasts long.
Look for HR 2422 in the constellation Mon. At apparent magnitude 6.05, it is an easy target for binoculars.
Like any astronomical target, HR 2422 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.
HR 2422 scores 38 points on Spacedle's rarity scale, which places it in the rare tier. Another 12 points would lift it into a rarer tier.
That score comes from 4 science badges — Variable star, Blazing O-type 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.