Earth Sciences 1086F/G Lecture Notes - Lecture 2: Pythagoras, Centrifugal Force, Space Debris
19 Mar 2019
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In chapter 3, we learned how star-planet systems form through the process that we described as the nebular hypothesis. Although there is a great deal of discussion and controversy about the details, that model best fits our observations. Solar system consists of a central star called sun surrounded by 8 major planets, 3 dwarf planets, too many comets to number, and a whole lot of space debris (everything from very fine dust to enormous asteroids). Before we begin our examination of the individual objects, i would like to recount some of the steps that led to our current understanding as expressed by pioneer astronomers and philosophers. Also, before we proceed, we need to learn two more definitions: geocentric model: earth is at the center of the solar system (figs. 1 and 7 top: heliocentric model: sun is at the center of the solar system (figs. One of the earliest models of the solar system (unless noted otherwise, we will use.
