Questions to Answer:
1.Describe the geocentric model of the universe that was held by the early Greeks?
2. Who compiled the Almagest and described how retrograde motion could fit into the geocentric model?
3. What is the heliocentric model and what Polish astronomer developed this model in the 1500’s?
4. Who developed three laws of planetary motion and first discovered that the orbits of planets are ellipitical?
5. Define each term:
a. synodic month
b. sidereal month
