Here’s the last in my solar system tutorial series. This video uses After Effects CC and Cinema4D Lite to create both Pluto and its moon Charon, then use a Loft object and circular splines to create a shared atmosphere linking the two bodies.
Here you'll find a bunch of tutorials for using After Effects (mainly). I have a YouTube channel, called ShiveringCactus (long story - not funny anymore) where I post the videos.