[edit] Animations

Images are representative (made by hand), not simulated.

Two bodies of similar mass orbiting a common barycenter. (similar to the 90 Antiope system)	Two bodies with a difference in mass orbiting a common barycenter, as in the Pluto–Charon system.	Two bodies with a major difference in mass orbiting a common barycenter (similar to the Earth–Moon system)	Two bodies with an extreme difference in mass orbiting a common barycenter (similar to the Sun–Earth system)
Two bodies with similar mass orbiting a common barycenter with elliptic orbits (a common situation for binary stars)