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OpenStudy (anonymous):
Explain why models are often used to study other planets.
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OpenStudy (anonymous):
Theoretical astronomers use a wide variety of tools which include analytical models (for example, polytropes to approximate the behaviors of a star) and computational numerical simulations. Each has some advantages. Analytical models of a process are generally better for giving insight into the heart of what is going on. Numerical models can reveal the existence of phenomena and effects that would otherwise not be seen.
OpenStudy (sreekar369):
Models are used because they are convenient substitutes
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