Planet            Radius            Mass           Density
                        (m)             (kg)           (kg/m^3)
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    Earth            6.37 x 106       5.97 x 1024       5514 

    Jupiter         71.49 x 106    1898    x 1024       1240

    Saturn          60.27 x 106     568    x 1024        619

    Uranus          25.56 x 106      86.8  x 1024       1240

    Neptune         24.76 x 106     102    x 1024       1604

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