Kepler's+Theoies

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Kepler's first law of planetary motion states, "All planets move in elliptical orbits with the Sun at one focus and the other focus empty."

Kepler's second law of planetary motion states, "The line joining the planet to the Sun sweeps over equal areas in equal time intervals."

Kepler's third law of planetary motion states, "For any planet, the square of it's period of revolution is directly proportional to the cube of it's mean distance from the Sun.

These laws of planetary motion gave scientists the ability to calculate planets' orbits.