 The solar system consists of the sun and the planets pulled into orbit around it by gravity. If this does not qualify as a state of affairs then there must be some relation independent of gravitation that unites the things involved in a state of affairs. What distinguishes this complex physical object from the state of affairs the sun’s pulling the planets into orbit by gravity? If the latter contains the sun and the planets and the pulling-by gravity relation, the distinction between the states of affairs and solar system must lie in what unites their elements.