POV Ray - Orrery
Visualization of an Orrery using Radiosity and Ray-tracing with POV Ray
The Persistence of Vision Raytracer is a high-quality, totally free tool for creating stunning three-dimensional graphics. Using this tool, I created an Orrery using Radiosity and Ray-tracing features.
The source files are here.
Some of the images that I came up using this are on this page. More images can be found here.