THIS IS AN OLD VERSION, PLEASE FOLLOW THIS LINK: https://scratch.mit.edu/projects/217838853/ you only have to click the green flag. If you think you know how this works you can try to change the initial values in the script to change the trajectories.
This is a model of four planets orbiting a star. The planets are only influenced by the gravity field of the star, not by other planets. I am trying to make that work. Update 15-5-2018: I finally took the time to make a better, FULLY CUSTOMIZABLE version of this simulation with MOONS and PLANET INTERACTION! (yay!): https://scratch.mit.edu/projects/217838853/
