Astronomical Unit, Light Year and Distance Scales
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This video discusses the distance units of the astronomical unit (AU) and Lithg-Year (LY). The video shows the orbits of planets in the solar system and discusses distances with a model in which the diameter of the Sun is 3 inches (a little larger than a tennis ball). PHY121 SCIE1300 Prof. Greg Clements Prof. Greg Clements
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92.96 million
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the distance of earth to the sun is 150 MILLION not yet billion!
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