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Mars


 

 

    Mars was also a planet known by the ancients, depicted as the Roman god of war (Ares in Greek mythology) possibly because of the planet's blood red color. 

 

Mass -- 6.42 x 1023 kg   (0.107 earth masses)

 

Radius -- 2,111 mi   (3,397 km or 0.5326 earth radii)

 

Distance from the sun (average) -- 141,633,260 mi   (227,936,640 km or 1.5237 AU)

 

Gravity -- 12.12 ft/sq. sec   (3.69 m/sq. sec)

    An adult weighing 140 lbs on Earth would weigh 53 lbs on Mars.

 

Maximum surface temperature -- 25 F

 

Minimum surface temperature -- -125 F

 

Orbital velocity -- 53,979 mph   (86,871 km/hr or 0.810 earth speed)

 

Orbital eccentricity -- 0.0934

    This is how off-circular the moon's orbit around the Earth is.  An eccentricity of 0.00 would be a perfect circle.  An eccentricity of nearly 1 would be a very flattened oval.  For a fun project on ellipses and eccentricity, click here.

 

Sidereal rotation -- 24.64 hr   (1.026 earth days)

    A day on Mars is pretty close to a day on Earth.

 

Sidereal orbit -- 16,486 hr   (687 earth days or 1.881 earth years)

    A year on Mars is nearly two Earth years.

 

Moons -- Phobos and Deimos

 

 

For more information on Mars, please visit SEDS' website http://www.nineplanets.org/mars.html and NASA's website http://solarsystem.nasa.gov/planets/profile.cfm?Object=Mars&Display=Overview.  Both websites are wonderful resources.

 

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Website last updated March 16,  2006.  Hosted by Anthony Watts, KMXI Radio.  Webmasters Tiara Norris and Brendan Diamond.