FORMATION OF SATELLITE AND RING-SYSTEMS - COMPARATIVE ASPECTS

There are four systems of a massive central body with a regularily str uctured satellite system in the Solar system: the planetary system and the satellite systems of Jupiter, Saturn and Uranus. Comparable struc tures in these four systems can be understood as indications for compa rable processes of origin and formation. It is the aim of this paper t o describe comparable properties, and to discuss possible physical pro cesses in pre-satellite disks which can be the cause for this comparab ility.