check out these links:
it's a scale model of our solar system...it helps getting an idea of the dimensions you are dealing with LOL
http://www.thegrid.org.uk/learning/s...solar_journey/
http://www.classzone.com/books/earth...?chapter_no=27
(travel through the system at 300x the speed of light...gives a good idea of distance)
To make a scale model of the solar system using a tenis ball for the sun, the earth would be approx. big as a peppercorn....Pluto, smaller than a pinhead, and, at more than half a mile (distance from the "sun", our tennis ball)