orbit

Orbit is a computer simulation program designed for teaching purposes, used to simulate the orbit of planets around the sun.

How to use

• Download orbit.pyw
• Ensure the completness of dependencies.Here is the list:

python                        3.10.4
....................................
numpy                         1.22.0
pygame                        2.5.1
scipy                         1.11.4

• Run!
• Press the space to pause. After pausing, you can view and modify the direction and size of the velocity, as well as drag planets.
• You can also press v to activate the velocity control.
• Press ctrl+r to reset.
• Enter "Kepler" in the velocity input box to visualize Kepler's second law, and enter "Bye, Kepler" to close it.
• The mass of a star is fixed at the mass of the sun and cannot be changed.