The Astronomy Center has provided educational resources to introductory astronomy educators since 2003. Over the past 20 years, the rapid pace of discovery has rendered some of our linked resources obsolete. Thus, the Astronomy Center will be decommissioned on March 1, 2022. Our highest quality resources will be retained on ComPADRE.org.
This web page demonstrates Kepler's Laws through a Flash simulation. The user places an object at some distance from the Sun and gives it an initial velocity to orbit the sun. Once the simulation begins, it shows the distance between the planet and the Sun, the days that have gone by, and the orbiting speed. An option is also available to show the areas swept out by the object in equal times. Both elliptical and parabolic trajectories are possible.
%0 Electronic Source %A Fowler, Michael %A Welch, Heather %D June 25, 2007 %T Planetary Motion %V 2022 %N 23 January 2022 %8 June 25, 2007 %9 application/flash %U http://galileoandeinstein.phys.virginia.edu/more_stuff/Applets/Kepler/kepler.html
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