multiple start orbit simulation - SERP Analysis

http://www.atlasoftheuniverse.com/orbits.html

https://www.reddit.com/r/scifi/comments/8pjwro/anyone_know_of_a_phaseorbit_simulator_for/

https://orbitalmechanics.info/

https://astro.unl.edu/classaction/animations/renaissance/kepler.html

https://phet.colorado.edu/en/simulations/gravity-and-orbits

https://physics.stackexchange.com/questions/598306/how-to-simulate-orbits

https://ssd.jpl.nasa.gov/tools/orbit_viewer.html

https://astronomy.stackexchange.com/questions/11764/what-does-the-orbit-of-multiple-star-systems-look-like

https://www.universetoday.com/articles/a-i-finds-a-new-way-to-build-multiple-star-systems

https://www.physicsforums.com/threads/how-to-simulate-planets-orbit-curce-around-the-sun.544982/