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The star Alpha Canis Minoris, magnitude 0.40, the eighth-brightest star in the sky. It is an F5 subgiant or dwarf and lies 11.5  l.y. away, among the nearest stars to us. Procyon has a white dwarf companion of spectral type DA, visual magnitude 10.9, and absolute magnitude 13.2, which orbits it in a period of 41 years. The masses of the two stars are 1.5 and 0.6 that of the Sun.

Subjects: Astronomy and Astrophysics.

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