2. The law of orbits:  All planets move in elliptical orbits, with the sun at one focus.

4. Planetary orbit eccentricities  Mercury.206  Venus.0068  Earth.0167  Mars.0934  Jupiter.0485  Saturn.0556  Uranus.0472  Neptune.0086  Pluto.25

6. The law of areas:  A line that connects a planet to the sun sweeps out equal areas in equal times.

8. The law of periods:  The square of the period of any planet is proportional to the cube of the semi-major axis of its orbit.

9. Planet Semimajor axis (10 10 m) Period T (y) T 2 /a 3 (10 -34 y 2 /m 3 ) Mercury5.790.2412.99 Venus10.80.6153.00 Earth15.012.96 Mars22.81.882.98 Jupiter77.811.93.01 Saturn14329.52.98 Uranus287842.98 Neptune4501652.99 Pluto5902482.99

11.  Period of Jupiter is 11.86 years  Find its distance to the sun?

12.  15 degrees per hour.  With an orbit of 6.5 Earth radii  Most satellites are only 200 km above Earth.  They make one revolution every 90 min.  230 degrees per hour.