KeplerEllipse Applet
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: KeplerEllipse.java
April 29th, 2011, Martin Lieberherr