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Encyclopedia > Characteristics of Mars II
CHARACTERISTICS OF MARS
| Characteristics | Values |
|---|---|
| Semi-major axis in astronomical units (au) |
1.5236793 |
| Semi-major axis in km | 227 939 185 |
| Eccentricity of the orbit | 0.09340 |
| Inclination of the orbit to the ecliptic | 1°.8497 |
| Inclination of the equator on the ecliptic | 25°.19 |
| Sidereal period of revolution | 686.980 days |
| Rotation period | 24.62 hours |
| Orbital velocity | 24 km/s |
| Apparent equatorial diameter at the smallest distance from the Earth (maximum value) |
25".7 |
| Equatorial diameter (Earth=1) | 0.5326 |
| Equatorial diameter | 6794 km |
| Visual magnitude at opposition | -2 |
| Flattening | 1/154 |
| Volume (Earth=1) | 0.15 |
| Mass (Sun=1) | 1/3 098 708 |
| Mass (Earth=1) | 0.107 |
| Density (Earth=1) | 0.71 |
| Density (Water=1) | 3.93 |
| Surface gravity (Earth=1) | 0.38 |
| Escape velocity | 5000 m/s |
| Reflectivity (geometric albedo) | 0.15 |
| The hightest peak | 27000 m |
| Deepest pit | 6000 m |
| Surface temperature | -123°/+37°C |
| atmospheric pressure (Earth=1) | 0.006 |
| Atmosphere | tenuously:
95% carbon dioxide 2.7% nitrogen 1.6% argon |
| Nature of the surface | Basaltic rocks |
