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Kepler's Laws
Kepler's 1st Law:
The orbits of the planets are ellipses with the Sun at one focus.
Kepler's 2nd Law:
The line joining a planet to the Sun sweeps out equal area in equal times.
- This means that the closer the planet is to the Sun, the faster it will travel.
Kepler's 3nd Law:
The square of the orbital period is directly proportional to the cube of the
average distance between the Sun and the planet:
- This means that the further the planet is from the Sun, the longer it takes to go around.
- If you know the distance to the planet, you know how long it takes to go around.
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