# Planetary Motion

Simulates an object orbiting a planet, and the forces involved

Planetary Motion is a simple simulation that displays the motion of an object which is orbiting a planet.

Newton’s inverse-law of gravitation allows users to reformulate this motion in modern terms using the equations for a massless test particle about a particle of mass M located at the origin.

M is the combined mass of the Sun and the planet and G is the universal gravitational constant.

The xy-coordinates for the massless test particle are the relative position of the planet with respect to theSun in this two-body approximation of the solar system.

The initial values for x and y and its derivatives must be taken from direct astronomical observation.In this simulation, they are chosen arbitrarily.

Newton’s inverse-law of gravitation allows users to reformulate this motion in modern terms using the equations for a massless test particle about a particle of mass M located at the origin.

M is the combined mass of the Sun and the planet and G is the universal gravitational constant.

The xy-coordinates for the massless test particle are the relative position of the planet with respect to theSun in this two-body approximation of the solar system.

The initial values for x and y and its derivatives must be taken from direct astronomical observation.In this simulation, they are chosen arbitrarily.

- last updated on:
- January 28th, 2011, 11:19 GMT
- file size:
- 1.2 MB
- price:
- FREE!
- developed by:
**Planetary Motion Team**- license type:
- Freeware
- operating system(s):
- Mac OS X
- binary format:
- -
- category:
- Home \ Math/Scientific

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