The Sun and Planets - Physical Data

        Equatorial  Oblate-      Mass      Mean             Escape    Rotation    Incl.   Visual
        Diam. (km)   ness    (Earth = 1)  Density  Gravity  (km/s)  Period (days) (deg.)  Albedo
        ----------  ------ -------------- -------  -------  ------  ------------- ------  ------
Sun     1,392,000     0    332,946.0        1.41    27.9    617.5     25 - 35 *
Mercury     4,878     0          0.055274   5.43     0.38     4.3     58.646        0.0    0.11
Venus      12,104     0          0.815005   5.24     0.91    10.4    243.017      177.3    0.65
Earth      12,756   1/298        1          5.52     1       11.2      0.9973      23.4    0.37
Mars        6,787   1/193        0.107447   3.94     0.38     5.0      1.0260      25.2    0.15
Jupiter   142,800   1/15       317.833      1.33     2.54    59.6      0.4101 **    3.1    0.52
Saturn    120,000   1/9         95.159      0.70     1.08    35.6      0.4440      26.7    0.47
Uranus     51,200   1/45        14.500      1.30     0.91    21.3      0.718       97.9    0.51
Neptune    48,600   1/40        17.204      1.76     1.19    23.8      0.768       29.6    0.41
Pluto       2,300     ?          0.0026     1.1?     0.05     1.2?     6.3867      94.     0.5 ?

Mass relative to Earth's mass, which is 5.974 x 10^24 kg.
Gravity and escape speed at the pole, at the visible surface.
Inclination of the equator relative to the plane of the orbit.
 * The Sun's surface rotates faster at the equator than at the poles.
** At the equator, where Jupiter's atmosphere rotates fastest.

Jeff Root - April 5, 2002
Minnesota Space Frontier Society
http://www.FreeMars.org/