KeplerEllipse Applet

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Movement of a celestical body around the sun on a keplerian ellipse
Aphelion distance and orbital period are fixed, the numerical eccentricity is adjustable within the limits 0 <= ecc <= 0.999. The shape of the ellipse is calculated exactly, the angular position is numerically integrated.

Created with BlueJ 3.0.4 (Java version 1.6.0_24) running on Mac OS X 10.6.7

And here is the source-code:

April 29th, 2011, Martin Lieberherr