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|[[File:Orbit1.gif|center|400px]]
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| style="height:20px; width:400px; text-align:center;" |This [[animation]] shows the elliptical [[orbit]] of a [[planet]] around a [[Star]]. As the [[planet]] gets further from the [[Star]] the [[speed]] of the [[planet]] decreases. As the [[planet]] gets closer to the [[Star]] the [[speed]] of the [[planet]] increases.
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