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Comparison Chart
Comparison: Earth's Moon vs. Earth

This chart shows the differences between Earth's Moon and Earth. To change the planets/moons being compared, change one or more of the form fields at the bottom and click Refresh.

Discovered By
Known by the Ancients
Known by the Ancients
Date of Discovery
Average Orbit Distance
384,400 km
149,598,262 km
Perihelion/Perigee (closest)
363,104 km
147,098,291 km
Aphelion/Apogee (farthest)
405,696 km
152,098,233 km
Equatorial Radius
1737.5 km
6,371.00 km
Equatorial Circumference
10,917.0 km
40,030.2 km
21,971,669,064 km3
1,083,206,916,846 km3
73,476,730,924,573,500,000,000 kg
5,972,190,000,000,000,000,000,000 kg
3.344 g/cm3
5.513 g/cm3
Surface Area
37,936,694.79 km2
510,064,472 km2
Equatorial Surface Gravity
1.624 m/s2
9.80665 m/s2
Escape Velocity
8,552 km/h
40,284 km/h
Rotation Period (Length of Day)
27.322 sidereal days
0.99726968 sidereal days
Orbit Period (Length of Year)
0.074803559 sidereal years
1.0000174 sidereal years
Mean Orbit Velocity
3,680.5 km/h
107,218 km/h
Orbit Eccentricity
Orbit Inclination to Ecliptic
5.16 degrees
0.00005 degrees
Equatorial Inclination to Orbit
6.68 degrees
23.4393 degrees
Orbit Circumference
2,413,402.16 km
939,887,974 km
Minimum/Maximum Surface Temperature
-233/123 °C
-88/58 (min/max) °C


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System of measurement:

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Last Updated: 9 Jun 2015