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Artist's depiction of Mars exploration
> Mars Database
Earth-Mars Comparison Data
Astronomical Data Earth Mars

Period of Orbit around Sun
Period of Revolution on Axis
Surface Gravity

Mass
Density
Diameter
Tilt of Axis
Sunlight
Min Distance from Sun
Max Distance from Sun
Min Distance between Earth & Mars
Surface Temperature

Average Temperature


365 Days 5 Hrs
24 Hours
9.78 m/s^2

5.98E24 kg
5,515 kg/m^3
12,753 km
23° 27"
1 Calorie/in^2
146,000,000 km
152,000,000 km
56,327,000 km
-89°C to 58°C
-128°F to 136°F
13.8°C (57°F)


1.88 Earth years
24.6 Hours
3.7 m/s^2
(37% of Earth)
6.4E23 kg
3,933 kg/m^3
6,785 km
25° 12"
44% of Earth
205,000,000 km
249,000,000 km
56,327,000 km
-129°C to 0°C
-200°F to 32°F
-55°C (-67°F)

Atmospheric Composition Earth Mars

Pressure
Carbon Oxide (CO2)
Nitrogen (N2)
Oxygen (O2)
Water (H2O)
Argon (Ar)


1,013 mb
0.00035
0.781
0.210
0 to 0.04
0.0093


7.6 mb
0.95
0.027
0.0013
0 to 0.00021
0.016