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I couldn't find anybody that does astronomy on here that could answer this but earth sciences...

I couldn't find anybody that does astronomy on here that could answer this but earth sciences seems kind of similar I don't know.

Question: Describe how the areas per time change throughout the earth and comet revolution around the Sun.

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Answer #1

Comets and for that matter, Earth have elliptical orbits around the Sun. These all orbiting bodies follow the Kepler's law which state that the closer an orbiting body is to the Sun, the faster they move. So when comets and the Earth are nearer to the Sun in their orbit the area swept per unit time is different from what the area swept per unit time when they are away from the Sun.

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