Lec 5 - AST101 F Lecture 5 28 September 2009 Prof....

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Unformatted text preview: AST101 F Lecture 5 28 September 2009 Prof. Mochnacki Assignment 1 Assignmet 1 is due on Mastering Astronomy at 11:59pm TONIGHT! A new assignment will be posted shortly afterward. Today's Topics Orbital motion: Kepler's Laws The night sky Constellations The Celestial Sphere Johannes K epler (1571-1630) AST 101 Fall 2010, University of Toronto, Dr. M. A. Reid 4 I mperial Mathematicus of the Holy Roman Empire and mas s ive g eek hero Inherited Tyc hos data and us ed it to fig ure out the law s g overning planetary motion. This w as c irca 1600. Keplers First Law Planets move in elliptical orbits with the Sun at one focus AST 101 Fall 2010, University of Toronto, Dr. M. A. Reid 5 Elliptical Orbits Planets sweep out equal areas in equal times: AST 101 Fall 2010, University of Toronto, Dr. M. A. Reid 7 Keplers S econd Law The confusing one slowest slower fastest Motions of the Naked-Eye Planets...
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Lec 5 - AST101 F Lecture 5 28 September 2009 Prof....

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