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Gravity matters

Simple Javascript implementation http://codeflow.org/entries/2010/aug/28/integration-by-example-euler-vs-verlet-vs-runge-kutta/ Orbital This one is promising, Code in python: https://github.com/RazerM/orbital Some of the provided examples: # Create circular orbit with 90 minute period orbit1 = KeplerianElements.with_period(90 * 60, body=earth) plot(orbit1, title=’Orbit 1′) # Create molniya orbit from period and eccentricity from orbital.constants import earth_sidereal_day molniya1 = KeplerianElements.with_period( earth_sidereal_day / 2, e=0.741, i=radians(63.4),… Continue reading