RA 311.5527° · Dec 35.5404° · star
4 more points to reach Common.
HIP 102489 is a trash star. It sits in the constellation Cyg, shines at apparent magnitude 9.38 and has spectral type B0.5Vn.
Its spectrum reads B0.5Vn — 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 HIP 102489 in the constellation Cyg. At apparent magnitude 9.38, a small backyard telescope will bring it into view.
Like any astronomical target, HIP 102489 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.
HIP 102489 scores 11 points on Spacedle's rarity scale, which places it in the trash tier. Another 4 points would lift it into a rarer tier.
That score comes from 3 science badges — Star, Hot blue B-type star and Main-sequence 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.