RA 217.1813° · Dec -59.1975° · star
2 more points to reach Uncommon.
HR 5403 is a common star. It sits in the constellation Cen, shines at apparent magnitude 6.46 and has spectral type A0II/III.
Its spectrum reads A0II/III — 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 HR 5403 in the constellation Cen. At apparent magnitude 6.46, it is an easy target for binoculars.
Like any astronomical target, HR 5403 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 5403 scores 20 points on Spacedle's rarity scale, which places it in the common tier. Another 2 points would lift it into a rarer tier.
That score comes from 3 science badges — Star, 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.