Table : TABLE 2-3 A DEMONSTRATION OF KEPLER’S THIRD LAW

 

Sidereal period P (year)

Semimajor axis a (AU)

P2

=

a3

Mercury

    0.24

    0.39

           0.06

 

          0.06

Venus

    0.61

    0.72

           0.37

 

          0.37

Earth

    1.00

    1.00

           1.00

 

          1.00

Mars

    1.88

    1.52

           3.53

 

          3.51

Jupiter

  11.86

    5.20

      140.7

 

     140.6

Saturn

  29.46

    9.54

      867.9

 

     868.3

Uranus

  84.01

  19.19

   7058

 

   7067

Neptune

164.79

  30.06

27,160

 

27,160