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planetsun - the kepler problem in 3d
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A nice 2d applet which also lets you study nonstable motions depending on the starting parameters of N planets. Adjust the planets initial velocity and position in a plane and see what happens...

Another fine 2d applet which emphasizes on kepler's second law. The coordinate system is attached to the sun. Realtime visualization of velocity and acceleration vectors

A 2d applet which lets you adjust the start position and velocity of a planet. The coordinate system is attached to the sun. Includes source code.

A 2d applet visualizing kepler's third law (e.g. the relation of the ellipse "radius" (semimajor axis) to the orbital period). Shows two planets on adjustable circular paths around the sun.


planetsun - the kepler problem in 3d is a bitsoup project
last modified: 2007 JUL 21
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