Kepler Orrery

This is the source code to create the Kepler orrery featured in
this video (update 5) and update 4.

Everything can be run using python assuming the following packages are
installed (most are defaults in every python installation):

• os
• datetime
• numpy
• matplotlib
• glob

To create the movie or gif from the output series of png files however,
ffmpeg must also be installed to run
the *.sh files.

All appropriate settings for the movie creation are listed at the top of
orrery.py and should be documented.

The movie can be recreated with the default settings by running

python orrery.py

./makeorrery_movie.sh movie/ orrery_movie.mp4 30