7. Venus: The veiled planet

Basic data

Physical properties of Venus*

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Mass 4.870 x 1024 kilograms = 0.815 ME
Mean radius 6.0519 x 106 meters = 0.949 RE
Mean mass density 5,244 kilograms per cubic meter
Rotation period 243.025 Earth days, retrograde
Orbital period 224.7 Earth days
Mean distance from Sun 1.08157 x 1011 meters = 0.723 AU
Age 4.6 x 109 years
Atmosphere 96 percent carbon dioxide, 3.5 percent nitrogen
Surface pressure 92 bars
Surface temperature 735 degrees kelvin
Magnetic field strength less than 3 x 10-9 tesla or 10-5 BE
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* The symbols ME, RE, and BE denote respectively the mass, radius and magnetic field strength of the Earth.

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Copyright 2010, Professor Kenneth R. Lang, Tufts University