ethankruse / kepler_orrery

Make a Kepler orrery gif or movie of all the Kepler multi-planet systems

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

kepler_orrery's Issues

Error when was executing the ".py" file

File "orrery.py", line 212
print 'Placing {0} of {1} planets'.format(ii, nplan)
^
SyntaxError: invalid syntax

Problem with number of tick labels

While running the main code, I get this error: The number of FixedLocator locations (5), usually from a call to set_ticks, does not match the number of ticklabels (6). It points to line 507.