----------------{How to INSTALL Cerillion}----------------
In the downloaded ZIP-file should be a folder named 'Planet_Cerillion'. Just place this inside the 'GameData' folder in your KSP directory.
Cerillion SHOULD work, provided that Kopernicus, ModularFlightIntegrator (comes bundled with Kopernicus) and ModuleManager are present.
Cerillion contains configurations that should automatically provide information for the following mods:
 - Environmental Visual Enhancements
 - PlanetShine
 - Distant Object Enhancement




----------------{How to UNINSTALL Cerillion}----------------
Just delete the 'Planet_Cerillion' folder in the 'GameData' folder in your KSP directory.