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What is the definition of "astrophysics"?

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Astrophysics is a subdivision of astronomy concerned with the structures and properties of cosmic objects in the universe. Astrophysics deals with the physical nature of terrestrial bodies and stars rather than their movements and positions in space.

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Astrophysics involves the study of the chemical composition, density, temperature and brightness of cosmic objects. Photography and spectroscopy are applied in the study of the universe during astronomical research processes. Astrophysics also entails the study of the interior and atmospheric physics of cosmic objects. The goal of astrophysics is to study and comprehend the history of the galaxy and the formation of planetary systems.

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