Mars Fact Sheet
  

Diameter:

 4,217 miles

Mass:

 7,150,000,000,000,000 tons
(7.15 quadrillion tons)

Density:

 3.9 (water=1)

Minimum Distance from Sun:

 128 million miles

Maximum Distance from Sun:

 155 million miles

Minimum distance from Earth:

 35 million miles

Day/night length:

 24 hours, 37 minutes

Length of year:

 687 Earth days

Tilt of axis:

 25º 12'

Surface gravity:

 0.11 × Earth

Temperature:

 -160º F to 32ºF

Satellites:

 2

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