Across
- 4. the plane in which an object's orbit lies
- 5. the star around which the earth orbits
- 6. the spin of an object around a point or line
- 7. the third planet from the sun
- 9. the natural satellite of the earth
- 11. the amount of hours it takes the earth to rotate one time
Down
- 1. a group of stars forming a pattern
- 2. an imaginary line around which a rotating object turns
- 3. a natural object in space
- 8. the motion of an object around another object in space
- 10. the path that an object follows as it revolves around another object