NEEP602 Course Notes (Fall 1996)
Resources from Space
Table 2-8. General Physical Characteristics of the Moon
Mean distance from Earth: 384,405 km
238,858 statute miles
207,562 nautical miles
60.3 Earth radii
Lunar diameter: 3476 km
2160 statute miles
1877 nautical miles
Orbital velocity: 1.03 km/sec.
0.64 miles/sec.
2001 knots
Escape velocity: 2.38 km/sec.
1.48 miles/sec.
4627 knots
Surface circular satellite period: ~2 hours
Gravity: 0.165 g (1.62 m/s^2 at lunar equator)
Atmosphere: nil
Surface gas density: 2 x 10^5 molecules/cm^3
Surface terrain: Slopes from 0-10 degrees
(maria) and 0-23 degrees (highlands)
Surface temperature: 102 deg.K to 407 deg.K
-171 deg.C to 134 deg.C
-276 deg.F to 273 deg.F
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