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The top documents tagged [planets tug]
Kepler’s Laws. Johannes Kepler Mars’ orbit is not a perfect circle, it is elliptical The speed of Mars’ orbit changes Closer to sun = faster Farther away
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Other Planetary Systems (Chapter 13) Extrasolar Planets Is our solar system the only collection of planets in the universe?
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Kepler’s Laws of Planetary Motion
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Kepler’s Laws
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