August 3, 2009

About the earth

Author: globeguy

Our EarthDiameter: 12,753 km (7,926 miles)

Mass:  5.98×10^24 kilograms (6.5e21 tons)

Surface Gravity: 9.78 m/s^2

Density: 5,515 kg/m^3

Minimum Distance from Sun: 146 million km (91 million miles)

Maximum Distance from Sun: 152 million km (94.5 million miles)

Tilt of Axis: 23 degrees 27″

Rotation Period with respect to Sun (Length of Day): 24 hrs

Rotation Period with respect to stars (Sidereal Day): 23 hrs 56 min

Revolution Period about the Sun (Length of a Year): 365 days 5 hrs 

Temperature: -89 degrees C to 57.7 degrees C (-128 degrees F to 136 degrees F)

 

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