Mars Scientific Data

Mars/Earth Comparison

Surface gravity relative to earth = 0.377 (A 200 lb man on earth would weigh 75.4 pounds on Mars)

Mars Mass = 6.4 X 10^23Kg = 1.4^24 pounds

Mars Diameter = 6,794Km = 4,222 miles

Mars Volume = 1.63 X 10^11 cubic Km
   = 3.9 x 10^10 cubic miles

Mars average density = 3,933Kg/cubic meter
   = 245 pounds per cubic foot

Mars escape velocity = 5.03 Km/sec
   = 3.12 miles/sec = 11,250 miles/hr

Mars average distance from sun = 2.28 x 10^8 Km
    =1.42 x 10^8 miles

Mars available solar power = 595 watts/ square meter
    = 55.3 watts/ square foot

Mars orbit time around sun = 687 days

Mars day = 24.62 hrs

Mars Average atmospheric temperature = 210K
   = -63C = -81F

Mars Atmospheric Pressure = 6.7 mb
   = 0.097 pounds/sq in

Mars atmospheric Density = 0.020 kg/m3
   = 0.0012 pounds/cubic ft

Mars atmosphere components by volume =

• 95.32% Carbon Dioxide

• 2.7% Nitrogen

• 1.6% Argon

• 0.13% Oxygen

• 0.021% Water

• 0.0003% Neon

• 0.08% Carbon Monoxide

• 0.01% Nitrogen oxide

Earth atmosphere components by volume =

• 0.035% Carbon Dioxide

• 78.1% Nitrogen

• 0.93% Argon

• 21% Oxygen

• 1% Water, Typically

• 0.0018% Neon

Mars distance from Earth = Minimum 5.4 X10^7Km Maximum 4.01 X10^ 8Km

Wind speed = 2 -7 m/s summer, 5 -10 m/s fall, 17 - 30 m/s storm

Mars daytime high temperature = 242K = -31C = -24F