Kepler's Laws lab - collinsgregori

A CRASH COURSE IN KEPLER’S LAWS. 1. All planets move in the shape of an ellipse with the sun at one focus. In this example, x and y are the planet's position on the ellipse and a and b are the axis of the ellipse. It was once thought that the orbits of the planet's were perfect circles. You call the flatness of the ellipse the eccentricity. ................
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