1. earth is located at one of the moon's orbit. true / false.
2. according to kepler's second law, jupiter will be traveling most slowly around the sun when at
3. earth orbits in the shape of a/an around the sun.
4. the mathematical form of kepler's third law measures the period in years and the in astronomical units (au).
5. according to kepler's second law, pluto will be traveling fastest around the sun when at
6. the extent to which mars' orbit differs from a perfect circle is called its