RA 0.5304° · Dec -14.6761° · star
2 more points to reach Epic.
HR 9090 is a rare variable star. It sits in the constellation Cet, shines at apparent magnitude 7.1 and has spectral type S7.3e.
Its spectrum reads S7.3e — an S-type giant, its atmosphere laced with zirconium dredged up from the fusion going on below.
Look for HR 9090 in the constellation Cet. At apparent magnitude 7.1, it is an easy target for binoculars.
Like any astronomical target, HR 9090 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.
HR 9090 scores 48 points on Spacedle's rarity scale, which places it in the rare tier. Another 2 points would lift it into a rarer tier.
That score comes from 4 science badges — Variable star, S-type star (zirconium giant), Dramatic variable (over 2 magnitudes) 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.