Across
- 2. A stone site in south of England,the sun rose directly over the heel stone on the longest day of the year
- 6. simplified geometry of the orbits of earth and venus as they move around the sun
- 7. realization that earth is not the center of the universe.
- 11. the force that holds objects down
- 12. A backwards loop that a planet will take during orbit
- 13. famous for the law of gravity
- 15. suns inward pull of gravity on a planet that stops it from moving straight
Down
- 1. provide a more natural explanation of the tangled geocentric cosmology
- 3. slight shift in the observed direction to a star, caused earths mtion
- 4. an object that keeps moving at the same pace unless acted upon a force
- 5. Greek philosopher that taught about the solar system
- 8. transit of mercury across the face of the sun, only happens once per decade
- 9. amount of time a planet takes to circle the sun
- 10. a push or pull that changes an objects direction of motion
- 14. flattened circle