RA 119.5602° · Dec -49.2449° · star
1 more point to reach Epic.
HR 3129 is a rare variable star. It lies about 959.3 light-years from Earth, sits in the constellation Pup, shines at apparent magnitude 4.47 and has spectral type B1Vp + B2.
Its spectrum reads B1Vp + B2 — 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 HR 3129 in the constellation Pup. At apparent magnitude 4.47, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, HR 3129 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 3129 scores 49 points on Spacedle's rarity scale, which places it in the rare tier. Another 1 point would lift it into a rarer tier.
That score comes from 8 science badges — Variable star, Naked-eye visible, Hot blue B-type star, Main-sequence star, Blue-white star, Intrinsically luminous (Mv < −2), Strongly 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.