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Mars Scientific Data |
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Mars/Earth Comparison |
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Surface gravity relative to earth = 0.377 (A 200 lb man on earth would weigh 75.4 pounds on Mars) |
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Mars Mass = 6.4 X 10^23Kg = 1.4^24 pounds |
Earth Mass = 5.97 x 10^24Kg = 1.3 x 10^25 pounds |
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Mars Diameter = 6,794Km = 4,222 miles |
Earth Diameter = 12,756Km = 7,927 miles |
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Mars Volume = 1.63 X 10^11 cubic Km
= 3.9 x 10^10 cubic miles |
Earth Volume = 1.08 x 10^12 cubic Km
= 2.6 x 10^11 cubic miles |
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Mars average density = 3,933Kg/cubic meter
= 245 pounds per cubic foot |
Earth average density = 5,520Kg/cubic meter
= 345 pounds per cubic foot |
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Mars escape velocity = 5.03 Km/sec
= 3.12 miles/sec = 11,250 miles/hr |
Earth escape velocity = 11.19 Km/sec
= 6.95 miles/sec = 25,000 miles/hr |
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Mars average distance from sun = 2.28 x 10^8 Km
=1.42 x 10^8 miles |
Earth average distance from sun = 1.496 x 10^8 Km
= 9.3 x 10^8 miles |
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Mars available solar power = 595 watts/ square meter
= 55.3 watts/ square foot |
Earth available solar power = 1,380 watt/ square meter
= 128 watts/ square foot |
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Mars orbit time around sun = 687 days |
Earth orbit time around sun = 365.25 days |
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Mars day = 24.62 hrs |
Earth day = 24 hrs |
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Mars Average atmospheric temperature = 210K
= -63C = -81F |
Earth average atmospheric temperature = 288K
= 15C = +59F |
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Mars Atmospheric Pressure = 6.7 mb
= 0.097 pounds/sq in |
Earth atmospheric pressure = 1014 mb
= 14.7 pounds/sq in |
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Mars atmospheric Density = 0.020 kg/m3
= 0.0012 pounds/cubic ft |
Earth atmospheric density = 1.23 kg/m3
= 0.0768 pounds/cubic ft |
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Mars atmosphere components by volume =
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95.32% Carbon Dioxide
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2.7% Nitrogen
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1.6% Argon
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0.13% Oxygen
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0.021% Water
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0.0003% Neon
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0.08% Carbon Monoxide
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0.01% Nitrogen oxide
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Earth atmosphere components by volume =
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0.035% Carbon Dioxide
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78.1% Nitrogen
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0.93% Argon
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21% Oxygen
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1% Water, Typically
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0.0018% Neon
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Mars distance from Earth = Minimum 5.4 X10^7Km Maximum 4.01 X10^ 8Km |
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Wind speed = 2 -7 m/s summer, 5 -10 m/s fall, 17 - 30 m/s storm |
| Mars nighttime low temperature = 184K = -89C = -128F |
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Mars daytime high temperature = 242K = -31C = -24F |
