MERCURY
* Mean Radius: 2439.7 km
* Mass: 0.055 (Earth=1)
* Density: 5.43 (g/cm3)
* Gravity: 0.376 (Earth=1)
* Orbit Period: 87.97 (Earth days)
* Rotation Period: 58.65 (Earth days)
* Semimajor Axis of Orbit: 0.387 au
* Eccentricity of Orbit: 0.206
* Distance from Sun: 57.9 million km, 35.5 million miles
* Average Surface Temperature: 332.3º F./166.9º C


VENUS
* Mean Radius: 6051.9 km
* Mass: 0.814 (Earth=1)
* Density: 5.24 (g/cm3)
* Gravity: 0.903 (Earth=1)
* Orbit Period: 224.7 (Earth days)
* Rotation Period: 243.0 R (Earth days)
* Semimajor Axis of Orbit: 0.723 au
* Eccentricity of Orbit: 0.007
* Distance from Sun: 108.2 million km, 67.2 million miles
* Average Surface Temperature: 866.9º F./463.9º C

EARTH
* Equatorial Radius: 6378.1 km
* Polar Radius: 6356.8 km
* Mass: 1.000 (Earth=1)
* Density: 5.52 (g/cm3)
* Gravity: 1.000 (Earth=1)
* Orbit Period: 365.26 (Earth days)
* Rotation Period: 1.00 (Earth days)
* Semimajor Axis of Orbit: 1.000 au
* Eccentricity of Orbit: 0.017
* Distance from Sun: 149.6 million km, 93 million miles
* Average Surface Temperature: 58.7º F. (14.9º C)



MARS
* Mean Radius: 3388.0 km
* Mass: 0.108 (Earth=1)
* Density: 3.94 (g/cm3)
* Gravity: 0.380 (Earth=1)
* Orbit Period: 686.98 (Earth days)
* Rotation Period: 1.026 (Earth days)
* Semimajor Axis of Orbit: 1.524 au
* Eccentricity of Orbit: 0.093
* Distance from Sun: 227.9 million km, 141.6 million miles
* Average Surface Temperature: -81.7º F./-63.1º C



JUPITER
* Mean Radius: 69911 km
* Mass: 317.8 (Earth=1)
* Density: 1.31 (g/cm3)
* Gravity: 2.34 (Earth=1)
* Orbit Period: 11.86 (Earth years)
* Rotation Period: .414 (Earth days)
* Semimajor Axis of Orbit: 5.2 au
* Eccentricity of Orbit: 0.004
* Satellites: 16
* Distance from Sun: 778.3 million km, 483.6 million miles
* Average Surface Temperature: -162.7º F./-108.1ºC


SATURN
* Mean Radius: 58232 km
* Mass: 95.2 (Earth=1)
* Density: 0.69 (g/cm3)
* Gravity: 1.16 (Earth=1)
* Orbit Period: 29.46 (Earth years)
* Rotation Period: 0.436 (Earth days)
* Semimajor Axis of Orbit: 9.53 au
* Eccentricity of Orbit: 0.056
* Satellites: 18
* Distance from Sun: 1,427 million km, 887.7 million miles
* Average Surface Temperature: -218.5º F./-139.2ºC


URANUS
* Mean Radius: 25362 km
* Mass: 14.48 (Earth=1)
* Density: 1.28 (g/cm3)
* Gravity: 1.15 (Earth=1)
* Orbit Period: 84.01 (Earth years)
* Rotation Period: 0.72 (Earth days)
* Semimajor Axis of Orbit: 19.18 au
* Eccentricity of Orbit: 0.047
* Satellites: 21
* Distance from Sun: 2,869.6 million km, 1,783.0 million miles
* Average Surface Temperature: -353.3º F./-215.2º C