RA 258.4375° · Dec -32.8526° · star
12 more points to reach Epic.
HD 155550 is a rare variable star. It lies about 2,038.5 light-years from Earth, sits in the constellation Sco, shines at apparent magnitude 8.01 and has spectral type B4IV.
Its spectrum reads B4IV — 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 155550 in the constellation Sco. At apparent magnitude 8.01, it is an easy target for binoculars.
Like any astronomical target, HD 155550 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 155550 scores 38 points on Spacedle's rarity scale, which places it in the rare tier. Another 12 points would lift it into a rarer tier.
That score comes from 7 science badges — Variable star, Distant (over 1,000 light-years), On the zodiac, Hot blue B-type star, Subgiant (leaving the main sequence), Strongly variable and A named variable 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.