Mars

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The School House
2301 W. Glen Ave, Peoria, Illinois 

Mass (kg)........................................... 6.42 x 10^23
Diameter (km)....................................... 6787
Mean density (kg/m^3) .............................. 3940
Escape velocity (m/sec)............................. 5000

Average distance from Sun (AU)...................... 1.524
Rotation period (length of day) (in Earth days)..... 1.026
Revolution period (length of year) (in Earth days).. 686.98

Obliquity (tilt of axis) (degrees).................. 25
Orbit inclination (degrees)......................... 1.85
Orbit eccentricity.................................. 0.093

Maximum surface temperature (K)..................... 240
Minimum surface temperature (K)..................... 190

Visual geometric albedo............................. 0.15
Highest point on surface............................ Olympus Mons 
                       (about 24 km above surrounding lava plains)
Atmospheric components.............................. 95% carbon dioxide, 
                                                      3% nitrogen, 
                                                      1.6% argon
Surface materials................................... basaltic rock and
                                                     altered materials
(Information from the California Institute of Technology)

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