Mercury Facts
Mass:
3.3 x 10
23
kg
Equatorial Radius:
2440 km
Atmosphere:
negligible
Temperature:
-180 °C to 430 °C
Distance from Sun:
46 to 70 million km
Axis Tilt:
0 degrees
Moons:
none
Surface Gravity:
g = 2.78 m/s
2
Escape Velocity:
(at equator) 4.25 km/s
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