http://www.exploratorium.edu/ronh/so...tem/index.html
This is a cool spread sheet to give sizes and distances.
http://nightsinbrightsaturn.files.wo...2012/08/8a.jpg
*Above* I built a scale model a couple of weeks ago, to the right is my little helper.
Distances are to scale the sizes of the planets are not. (they would not have been visible)
Distances based on a 2mm in diameter Sun