Star, Definition, Light, Names, & Facts

Star, any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources. This article describes the properties and evolution of individual stars. Included in the discussion are the sizes, energetics, temperatures, masses, and chemical compositions of stars.

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Stars: Facts about stellar formation, history and classification

Stars: Facts about stellar formation, history and classification

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Stars: Facts about stellar formation, history and classification