Question

what are the three laws discovered by Kepler?

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Answer 1

Answer:

1) every planet’s orbit is an ellipse with the Sun at a focus

2) a line joining the Sun and a planet sweeps out equal areas in equal times

3) the square of a planet’s orbital period is proportional to the cube of the semi-major axis of its orbit

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Answer 2

Answer:

There are actually three, Kepler's laws that is, of planetary motion: 1) every planet's orbit is an ellipse with the Sun at a focus; 2) a line joining the Sun and a planet sweeps out equal areas in equal times; and 3) the square of a planet's orbital period is proportional to the cube of the semi-major axis of its orbit