Comets Slide 117 of 188 Comets Comets originate from a belt of planetesimals which are in orbit around the Sun in the far outer regions of the solar system. This region is still considered to be part of our solar system. They are perturbed out of their orbit by the large outer planets or maybe even by passing stars. When they come into the inner solar system they take a very long elongated elliptical path.
Lets look at the path of a comet.