OS / Platform:
 Windows 2000,
 Windows 98,
 Windows NT,
 
 
Requirement:
Pentium 400MHz processor, 32MB RAM
 
Limitations:
Trial version with limited features
 
 
 
 
Editors Note 
Ideal Program to study and train the theory and lab exercises of gravitational physics. Allows you to study about elliptical orbits, Kepler`s third law, Lagrange points, escape velocity, double stars etc. You can calculate and plot the orbits of up to 10 bodies. Allows you to run up to four simulations at a time. Lets you to create graphs for energy, distance and velocity versus time. You can use original pictures of planets.