AST101H1 Chapter Notes -Giant Planet, Tidal Locking, Solar Wind
23 Apr 2013
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AST101H1 Full Course Notes
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Hydrogen compounds responsible for jovian planets" appearance: clouds and variety of colours. Jovian planet weather: winds and weather, colourful, cloudy skies, and enormous storms. Jupiter: thermosphere; stratosphere; troposphere (greenhouse gases) convection: thick clouds. Different gases condense at different temperatures to form clouds; leading to distinctive cloud layers at different altitudes. Methane condenses in very cold upper troposphere of uranus and neptune blue colour. Jovian planets have magnetospheres jupiter: strongest; weaker further from the sun and smaller they are (less solar wind & smaller metallic mantle/core); figure 11. 13. 11. 2: a wealth of worlds: satellites of ice and rock: Most jovian moons are in synchronous rotation with their planets strong tidal forces. Io: jupiter"s moon; most volcanically active world in solar system. Energy for tidal heating ultimately comes from jupiter"s rotation. Orbital resonance: orbital periods falling into a mathematical relationship figure 11. 19. Reason why io"s orbit is slightly elliptical, when normally, large satellites" orbits are circular.
