The Sun is 17 inches (23 cm) in diameter, Saturn's rings are 23 inches (58 cm). The completed structure measures 20 feet (6 m) from Sun to Kuiper Belt mini-mobile. The stack is taller than a person and yet weighs only 49 lbs. (22 kg).

You can watch it for hours, as the orbs serenely ghost along on the gentle zephyrs surrounding them. Sometimes, they move at about the speed of the real planets. Nothing appers to be moving but when you return after a few hours, Saturn is over there. They even operate on the same principles of a solar system. Based upon balanced proportional mass, the objects orbit each other on barycenters, just like real planets.