Large Circular - When the small mass has a moderate velocity and an initial
                         position far from the large mass it may follow a large circular
                         orbit. The large mass is at the center of the circle and the
                         small mass moves at a moderate rate.
 

Small Circular - When the small mass has a high velocity and initial position close
                         to the large mass, it may follow a small circular orbit. The
                         large mass is at the center of the circle and the small mass
                         orbits it rapidly!
 

Slightly Elliptical - An elliptical orbit may occur when the small mass is at a high
                             velocity when close to the large mass and is at a low velocity
                             when far away.
 

Highly Elliptical - A highly elliptical orbit may occur when the small mass is at a
                           very high velocity when close to the large mass and at a very
                          low velocity when far away.
 

Open Orbit - An open or hyperbolic orbit occurs when the small mass has,
                      a high enough velocity to overcome the large masses gravitational
                      pull.