1. The sun's keeps planets in our solar system in orbit around the sun.
2. Comets are examples of bodies that complete parabolic or
orbits.
3. The orbits of all the planets in the solar system are slightly elliptical with the exception of
laws describe why objects
4. Kepler's laws describe how objects move through space;
move in this way.
Respond to the following based on your reading.
5. Describe the differences between a geocentric model and heliocentric model. What model is
the current Sun-Earth-Moon System based on?