RA 186.6497° · Dec -63.0991° · star
15 more points to reach Anomaly.
Acrux is an epic star. It lies about 322 light-years from Earth, sits in the constellation Cru, shines at apparent magnitude 0.77 and has spectral type B0.5IV.
Its spectrum reads B0.5IV — 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 Acrux in the constellation Cru. At apparent magnitude 0.77, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, Acrux 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.
Acrux scores 63 points on Spacedle's rarity scale, which places it in the epic tier. Another 15 points would lift it into a rarer tier.
That score comes from 8 science badges — Star, Brilliant (mag < 1), Has a proper name, Under the Southern Cross, Hot blue B-type star, Subgiant (leaving the main sequence), Blue-white star and Intrinsically luminous (Mv < −2) — 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.