How to portray a sunny system using the model?

To portray a sunny system using a model, you can draw a circle in the center of the model, which will portray the sun and 8 circles around the circle (planets orbit) so that each subsequent was greater than the previous one. On each circle, draw planets, to remove from the Sun – Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. It is necessary to stick to the size of the Sun and the planets. The sun is a huge starring star. The smallest planet – Mercury, the dimensions of Venus and the Earth are approximately equal, Mars almost 2 times less than the Earth. Neptune is a little less uranium. Jupiter is the largest planet. Saturn is more uranium, but less than Jupiter.