Diameter (km) 
Mass (Earth = 1) 
Mean density (gm/cm^3) 
Equatorial radius (km) 
Average distance from Earth (km) 
Rotation period (days) 
Average length of lunar day (days)  
Obliquity (tilt of axis in degrees) 
Orbital period (days) 
Orbit inclination (degrees) 
Mean orbital velocity (km/sec) 
Orbital eccentricity  
Equatorial surface gravity (m/sec^2) 
Equatorial escape velocity (km/sec) 
Magnitude 
Mean surface temperature (day) 
Mean surface temperature (night) 
Maximum surface temperature 
Minimum surface temperature 
Visual geometric albedo  

3,476 km (2,160 miles)
1.2298e-02
3.34
1,737.4
384,400
27.32166
29.53059
1.5424
27.32166
5.1454
1.03
0.0549
1.62
2.38
-12.74
107°C
-153°C
123°C
-233°C
0.12