RA 3.3090° · Dec 15.1836° · star
26 more points to reach Anomaly.
Algenib is an epic variable star. It lies about 391.5 light-years from Earth, sits in the constellation Peg, shines at apparent magnitude 2.83 and has spectral type B2IV.
Its spectrum reads B2IV — 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 Algenib in the constellation Peg. At apparent magnitude 2.83, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, Algenib 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.
Algenib scores 52 points on Spacedle's rarity scale, which places it in the epic tier. Another 26 points would lift it into a rarer tier.
That score comes from 9 science badges — Variable star, Naked-eye visible, Has a proper name, Hot blue B-type star, Subgiant (leaving the main sequence), Blue-white star, Intrinsically luminous (Mv < −2) and Barely variable (under 0.05 mag) — 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.