10417

Mars



Distance from the Sun
(Semimajor axis of orbit)
227,936,640 km
1.52366231 A.U.

Mean Equatorial Radius
3,397 km
(0.5326 of Earth's radius)

Volume (Earth = 1)
0.149

Mass
0.64191 x 1027 g

Density
3.94 gm/cm3

Surface Gravity
371 cm/s2

Escape Velocity
5.02 km/s

Sidereal Rotation Period (Earth days)
1.02595675

Sidereal Orbit Period
1.8808476 sidereal years

Mean Orbit Velocity
24.1309 km/s

Orbit Eccentricity
0.09341233

Orbit Inclination to Ecliptic
1.85061 degrees

Inclination of Equator to Orbit
25.19 degrees

Mean Temperature at Solid Surface
186 to 268 K

Major Atmospheric Constituents
CO2, N2, Ar

Natural Satellites
1. Phobos
2. Deimos