SCEN101 Chapter Notes - Chapter 26: Convection Zone, Radiation Zone, Solar Core
27 Nov 2017
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Document Summary
Large orbiting bodies massive enough for their gravity to make them spherical but small enough to avoid having nuclear fusion in their cores. The plane of the earth"s orbit around the sun. The 4 planets orbiting within 2 au of the sun. The 4 planets orbiting beyond 2 au of the sun. The average distance between earth and the sun. Theories on solar system formation must explain: The motions among large bodies of the solar system. The division of planets into 2 main types. Holds that the sun and planets formed together from a cloud of gas and dust (a nebula) The solar system began to condense from the cloud of dust and gas about 5 billion years ago. The hot, central portion of the solar nebula is called the protosun. It was a clump of dust and gas that became the sun when thermonuclear fusion ignited within it.
