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Planet positions using Keplerian equations
From NASA JPL, I got these equations for calculating planet positions given a time. I implemented it in Processing and threw together a quick top view/side view visualizer. Here's the doc I referenced: http://ssd.jpl.nasa.gov/txt/aprx_pos_planets.pdf
It'd make a good starter for a solar system simulator, or stargazing app. The document also says "Useful for.. the planning and design of spacecraft missions." @-)
Comments
Great!
here i wrapped it in processing js, run it in your browser: http://robbykraft.com/kepler.html
Really like this, example. I added a comet to it already and have plans to add comet and asteroid data read direcly form MPC text data files. Some scale and time adjustments to be made in this code...
regards , Algwat.