“This tutorial will show you how to setup a cool, dynamic
wallpaper for your computer based upon XPlanet. The image to left
is the final result of this how-to; notice the cloud map and the
daylight, which are both periodically updated to match real-time
cloud data and sunlight. You can chose to do the same thing with
your background, or to customize the settings to your individual
taste. This article will show you how to configure xplanet to be
your desktop background in Gnome, so it will work in either Ubuntu
or Fedora. With a little tweaking to this desktop modification, you
should be able to get it to work under most environments and
distributions.”