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Procyonball, also known as α Canis Minoris (which is Latinized to Alpha Canis Minoris), and abbreviated α CMi or Alpha CMi respectively, is the brightest starball in the constellation of Canis Minordog and usually the eighth-brightest starball in the night sky, with an apparent visual magnitude of 0.34. As determined by
the European Space Agency Hipparcos astrometry satellite, this system is 11.46 light-years (3.51 parsecs) away from
Earthball, and is therefore one of its nearest stellar neighbors.
A binary starball system, the Procyon system consists of a white-hued main-sequence starball of spectral type F5 IV–V, (Procyon Aball), in orbit with a white dwarfball of spectral type DQZ, named Procyon Bball. The pair orbits each other with a period of 40.84 years and an eccentricity of 0.4.