How do the components of the solar system interact?

Firstly, the distances in the solar system are so great that nearly all the interactions are between the Sun and the other bodies. These include gravitational attraction, absorption of electromagnetic radiation from the Sun by other bodies, and interaction of those bodies with the solar wind.

Jupiter gives off some radiation, so that should interact with other bodies, and the Earth and Moon reflect light to each other, which should apply to other planets and moons.