RA 174.0391° · Dec -61.6949° · star
10 more points to reach Rare.
HD 306798 is an uncommon variable star. It lies about 2,434 light-years from Earth, sits in the constellation Cen, shines at apparent magnitude 9.33 and has spectral type B.
Its spectrum reads B — 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 306798 in the constellation Cen. At apparent magnitude 9.33, a small backyard telescope will bring it into view.
Like any astronomical target, HD 306798 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 306798 scores 24 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 10 points would lift it into a rarer tier.
That score comes from 5 science badges — Variable star, Distant (over 1,000 light-years), Hot blue B-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.