RA 172.8824° · Dec 17.7498° · star
11 more points to reach Rare.
HD 100150 is an uncommon star. It lies about 584.5 light-years from Earth, sits in the constellation Leo, shines at apparent magnitude 7.1 and has spectral type A1II:.
Its spectrum reads A1II: — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.
Look for HD 100150 in the constellation Leo. At apparent magnitude 7.1, it is an easy target for binoculars.
Like any astronomical target, HD 100150 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 100150 scores 23 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 11 points would lift it into a rarer tier.
That score comes from 4 science badges — Star, On the zodiac, White A-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.