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  • Mona Evans

    Castor. Wow - what a star! Single to the eye, a triple in a telescope and six altogether. Illustration not to scale. bob king

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Procyon is the seventh brightest star in the sky and one of the vertices of the Winter Triangle. It's one of our nearest neighbors at just over 11 light years away in the constellation Canis Minor. Procyon is a binary star system, composed of a white main sequence star and a white dwarf star.

A STAR'S BIRTH AND DEATH --- In this graphic discover what takes for a star to be born. By Jason Treat and Alexander Stegmaier. Published on March 2014

Infographic: The nearest stars, their distances in light-years, spectral types and known planets.