Planetary data for Mars


Planetary data for Mars

Table
Planetary data for Mars
mean distance from Sun 227,941,040 km (1.5 AU)
eccentricity of orbit 0.093 399
inclination of orbit to ecliptic 1.850 20°
Martian year (sidereal period of revolution) 686.980 Earth days
visual magnitude at mean opposition -2.01
mean synodic period* 779.94 Earth days
mean orbital velocity 24.1 km/s
equatorial radius 3,396.2 km
north polar radius 3,376.2 km
south polar radius 3,382.6 km
surface area 1.44 × 108 km2
mass 6.418 × 1023 kg
mean density 3.94 g/cm3
mean surface gravity 372 cm/s2
escape velocity 5.022 km/s
rotation period (Martian sidereal day) 24 h 37 min 22.663 s
Martian mean solar day (sol) 24 h 39 min 36 s
inclination of equator to orbit 24.936°
mean surface temperature 210 K (-82 °F, -63 °C)
typical surface pressure 0.006 bar
number of known moons 2
*Time required for the planet to return to the same position in the sky relative to the Sun as seen from Earth.
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Universalium. 2010.

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