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![](../../../images/furniture/menusep.gif) Planets Mercury Venus Earth Mars Phobos Deimos Jupiter Saturn Uranus Neptune Pluto
![](../../../images/furniture/menusep.gif) Asteroids
![](../../../images/furniture/menusep.gif) Comets
![](../../../images/furniture/menusep.gif) Constellations
![](../../../images/furniture/menusep.gif) Sunrise and Sunset Times
![](../../../images/furniture/menusep.gif) Moon Phases
![](../../../images/furniture/menusep.gif) SI Units
![](../../../images/furniture/menusep.gif) Symbols
![](../../../images/furniture/menusep.gif)
Printer Version |
Astronomy Planets - Mars
Bulk Parameters |
Orbital Parameters
Observational Parameters |
Atmospheric Parameters
Satellites
Bulk Parameters |
Mass |
0.6419 × 1024 kg |
Volume |
16.318 × 1010 km3 |
Equatorial Radius |
3397 km |
Polar Radius |
3375 km |
Volumetric Mean Radius |
3390 km |
Core Radius |
1700 km |
Ellipticity |
0.0065 |
Mean Density |
3933 kg m-3 |
Surface Gravity |
3.69 m s-2 |
Escape Velocity |
5.03 km s-1 |
GM |
0.04283 × 106 km3 s-2 |
Bond Albedo |
0.16 |
Visual Geometric Albedo |
0.150 |
Visual Magnitude |
-1.52 |
Solar Irradiance |
595 W m-2 |
Black-Body Temperature |
216.6 K |
Moment of Inertia |
0.366 I MR-2 |
Topographic Range |
36 km |
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Orbital Parameters |
Semimajor Axis |
227.9 × 106 km |
Sidereal Orbit Period |
686.980 days |
Tropical Orbit Period |
686.930 days |
Perihelion |
206.6 × 106 km |
Aphelion |
249.3 × 106 km |
Synodic Period |
779.94 days |
Mean Orbital Velocity |
24.13 km s-1 |
Orbital Inclination |
1.85 ° |
Orbital Eccentricity |
0.0934 |
Sidereal Rotation Period |
24.6229 hours |
Obliquity to Orbit |
25.19 ° |
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Observational Parameters |
Maximum Apparent Diameter from Earth |
25.7 arc seconds |
Minimum Apparent Diameter from Earth |
3.5 arc seconds |
Maximum Distance from Earth |
401.3 × 106 km |
Minimum Distance from Earth |
54.5 × 106 km |
Apparent Magnitude near Opposition |
-2.0 |
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Atmospheric Parameters |
Surface Pressure |
6.9 mbars to 9 mbars |
Surface Density |
0.020 kg m-3 |
Scale Height |
11.1 km |
Average Temperature |
210 K |
Diurnal Temperature Range |
184 K to 242 K |
Surface Wind Speeds - Autumn |
2 to 4 m s-1 |
Surface Wind Speeds - Summer |
5 to 10 m s-1 |
Surface Wind Speeds - Dust Storm |
17 to 30 m s-1 |
Mean Molecular Weight |
43.34 g mol-1 |
Carbon Dioxide CO2 |
![](../../../images/blueblok.gif) |
95.32% |
Nitrogen N2 |
![](../../../images/blueblok.gif) |
2.7% |
Argon Ar |
![](../../../images/blueblok.gif) |
1.6% |
Oxygen O2 |
![](../../../images/blueblok.gif) |
0.13% |
Carbon Monoxide CO |
![](../../../images/blueblok.gif) |
0.08% |
Water H2O |
![](../../../images/blueblok.gif) |
210 ppm |
Nitrogen Oside NO |
![](../../../images/blueblok.gif) |
100 ppm |
Neon Ne |
![](../../../images/blueblok.gif) |
2.5 ppm |
HDO |
![](../../../images/blueblok.gif) |
0.85 ppm |
Krypton Kr |
![](../../../images/blueblok.gif) |
0.3 ppm |
Xenon Xe |
![](../../../images/blueblok.gif) |
0.08 ppm |
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