9. Consists of the Sun and everything that orbits the Sun 10. A celestial body that orbits a star
11. The force that pulls all objects with mass toward one another
12. Located between the orbits of Mars and Jupiter
13. The measure of gravity exerted on an object
14. The path followed by an object revolving around another object
15. The amount of matter in an object
16. The star around which the Earth orbits