Attached Link: http://www.renderosity.com/messages.ez?ForumID=12356&Form.ShowMessage=612073&Reply=612422#8

We were messing around with something almost exactly similar in the Poser Forum (thx to Phoul for alerting me to it :) There's a program that can do all of this for you if you want it; head on over to http://www.shatters.net/celestia and check it - it's a free program that sets things up to scale, and you can capture animation or images from it.