RA 86.6896° · Dec 15.8225° · star
11 more points to reach Rare.
129 Tau is an uncommon star. It lies about 734.6 light-years from Earth, sits in the constellation Tau, shines at apparent magnitude 6 and has spectral type B8IIIMNp....
Its spectrum reads B8IIIMNp... — 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 129 Tau in the constellation Tau. At apparent magnitude 6, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, 129 Tau 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.
129 Tau scores 23 points on Spacedle's rarity scale, which places it in the uncommon tier. Another 11 points would lift it into a rarer tier.
That score comes from 5 science badges — Star, On the zodiac, Hot blue B-type star, Giant star and Blue-white 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.