RA 111.0238° · Dec -29.3031° · star
1 more point to reach Uncommon.
Aludra is a common variable star. It lies about 1,988.8 light-years from Earth, sits in the constellation CMa, shines at apparent magnitude 2.45 and has spectral type B5Ia.
Notable enough to have earned a proper name, not just a catalogue number.
Look for Aludra in the constellation CMa. At apparent magnitude 2.45, it can be glimpsed with the unaided eye under dark skies.
Like any astronomical target, Aludra 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.
Aludra scores 23 points on Spacedle's rarity scale, which places it in the common tier. Another 1 point would lift it into a rarer tier.
That score comes from 3 science badges — Variable star, Distant (>1000 ly) 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.