My Solar System enable you to build your own system of heavenly bodies and watch the gravitational ballet. With this orbit simulator, you can set initial positions, velocities, and masses of 2, 3, or 4 bodies, and then see them orbit each other. Virtualy explore the solar system.

Sample Learning Goals
1. Predict the necessary mass, velocity, and distance from the sun of a planet in order for this planet to make a circular orbit around a sun.
2. What happens when you increase or decrease the mass of the planet, but keep everything else constant? Does this agree with your prediction?
3. What happens to the orbit of the planet when you increase or decrease the magnitude of the velocity of the planet, but keep everything else constant?
4. What happens to the planet's orbit when the increase or decrease the initial distance between the planet and the sun?

Requirements:
* Java

The license of this software is Freeware, you can free download and free use this calculator software.