RA 293.6885° · Dec 30.5164° · star
2 more points to reach Common.
Campbell's Hydrogen Star is a trash variable star. It sits in the constellation Cyg, shines at apparent magnitude 10 and has spectral type WC....
Notable enough to have earned a proper name, not just a catalogue number.
Look for Campbell's Hydrogen Star in the constellation Cyg. At apparent magnitude 10, a small backyard telescope will bring it into view.
Like any astronomical target, Campbell's Hydrogen Star 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.
Campbell's Hydrogen Star scores 13 points on Spacedle's rarity scale, which places it in the trash tier. Another 2 points would lift it into a rarer tier.
That score comes from 2 science badges — Variable star and Has a proper name — 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.