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Astronomy

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Kepler's First Law   The orbit of each planet around the Sun is an ellipse with the Sun at one focus  
Kepler's Second Law   As a planet moves around its orbit, it sweeps out equal areas in equal times  
Kepler's Third Law   More distant planets orbit the Sun at slower than average speeds - p^2 = a^3  
perihelion   point at which planet is closest to the sun  
aphelion   point at which planet is farthest from the sun  
pseudoscience   observations that do not treat evidence in a scientific way  


   

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