RA 181.1886° · Dec -59.2533° · star
10 more points to reach Rare.
HD 104900 is an uncommon star. It lies about 346.6 light-years from Earth, sits in the constellation Cru, shines at apparent magnitude 6.3 and has spectral type B9Vn.
Its spectrum reads B9Vn — 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 104900 in the constellation Cru. At apparent magnitude 6.3, it is an easy target for binoculars.
Like any astronomical target, HD 104900 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 104900 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 — Star, Under the Southern Cross, Hot blue B-type star, Main-sequence 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.