AST101H1 Lecture Notes - Lecture 13: Kuiper Belt, Oort Cloud, Immanuel Kant
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AST101H1 Full Course Notes
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Why is earth"s orbit in the same direction as the sun"s rotation. Because earth and sun formed out of the same flat spinning cloud. Bits of dust stick together to form larger and larger rocks. Why do jovian planets form only in the outer parts of the solar system. Because the temperature is lower at greater distances from the sun. Planets all orbit sun in the same direction (ccw) prograde. Sun and most of the planets rotate in the same direction (ccw) Most of the massive moons of planets orbit their planets in this same direction (prograde) Any useful theory must explain five things: Almost everything (including moons) is spinning and orbiting in the same direction, and moving in a flat plane. There are weird exceptions to this (venus, uranus) Terrestrial planets are all near the sun, jovian planets are all further out. There are many asteroids and comets, mostly located in three regions: asteroid belt,
