Formation - Formation of the Solar System Some Clues...

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Formation of the Solar System Some Clues Motions in the Solar System major planets lie in a plane and orbit in the same direction moons of the planets orbit in the same direction Two major types of planets small, terrestrial planets with few moons large, jovian planets with many moons and rings Asteroids and Comets - left over material Exceptions to the above: rotations of Venus and Uranus our large Moon Triton, the moon of Neptune
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The Nebular Hypothesis
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The Nebular Hypothesis 1) A shock wave, possibly from a nearby supernova, hits a cloud of cold gas (the solar nebula ), and it begins to contract under its own gravitation. 2) As it collapsed and its radius decreased, the force of gravity increased. Also, the gas was heated as the gravitational potential energy was converted to heat energy, and the spin rate increased due to conservation of momentum. 3)
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Formation - Formation of the Solar System Some Clues...

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