Each asteroid would be represented by a grain of sand. All grains being individually connected to the central motor and appropriately complex gearing system by tiny "L" shaped prongs, which never bump into each other, because of the precise engineering.

(simplex version consists of a brick on each end of a string that you whirl around, while standing in the middle of a field)
-- xenzag, Feb 18 2010

The Comet Orrery presumably uses telescopic prongs?
-- pocmloc, Feb 18 2010



random, halfbakery