Com Padre Digital Library: Open Source Physics: Celestial Globe Model

This site from Open Source Physics offers a file with a simulation of Kepler's theory of planetary motion, tested with the Earth rotating around the sun and another planet of the user's choosing. The download requires Java.

This astronomy simulation presents stars in their Altitude/Azimuth coordinates serving as an introduction to the celestial globe and equatorial coordinates.

This downloadable java simulation models the 2D energy eigenstates of a particle trapped in a very deep two-dimensional circular well.

This simulation offers an illustration of Ptolemy's orbit for an inferior planet.

A simulation illustrating Ptolemy's geometrical system of explaining the varying speeds and directions of the planets, sun, and moon.

Simulation examining simultaneity and causality in special relativity by manipulating the space and time coordinates of one or two events.

The path of cannonballs fired near a black hole are computed using the Schwarzschild metric and presented in this visualization, allowing for study of the theory of general relativity. The cannon's angle and the number and speed of the...

Simulation showing the behavior of photons in three different gravitational lens scenarios.

Simulation exploring the behavior of particles as they approach a black hole using Schwarzschild coordinates.

Using equatorial coordinates, observers will examine the position of a star over the course of the night sky in this simulation.