http://www.pldm.co.uk/solarsystem/Main.swf
I couldn’t find an interactive correct scale solar system anywhere. So I built one. Not finished yet. Lots more plans for it. If the imagery upsets anyone, please let me know and I’ll delete them. I found all the images via a google image search.
The buttons at the top represent that planets. I will make these proper buttons soon. Black is the entire solar system, the one next to it are just the home planets. I think this gives a good representation of the size of the solar system. Here’s the link: http://www.pldm.co.uk/solarsystem