Across
- 2. a parameter that measures how much a conic section—such as an orbit or geometric curve—deviates from a perfect circle
- 4. number 1 Law of orbits
- 5. the main energy source for earth
- 7. number 2 Law of equal areas
Down
- 1. the common center of mass where two or more celestial bodies orbit each other
- 3. body any naturally occurring physical entity, association, or structure that exists in outer space beyond Earth's atmosphere
- 6. number 3 Law of Periods