Earth

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Beachler's AMOCO
War Memorial at University, Peoria, Illinois 

Mass (kg)........................................... 5.98 x 10^24
Diameter (km)....................................... 12756
Mean density (kg/m^3) .............................. 5520
Escape velocity (m/sec)............................. 11200

Average distance from Sun (AU)...................... 1
Rotation period (length of day) (in Earth hours).... 23.93
Revolution period (length of year) (in Earth days).. 365.26

Obliquity (tilt of axis) (degrees).................. 23.4
Orbit inclination (degrees)......................... 0
Orbit eccentricity.................................. 0.017

Mean surface temperature (K)........................ 281
Maximum surface temperature (K)..................... 310
Minimum surface temperature (K)..................... 260

Visual geometric albedo............................. 0.39
Highest point on surface............................ Mount Everest 
                                       (over 8 km above sea-level)
Atmospheric components.............................. 78% nitrogen, 
                                                     21% oxygen, 
                                                      1% argon
Surface materials................................... basaltic and 
                                                granitic rock and 
                                                altered materials
(Information from the California Institute of Technology)

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