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

	Earth's Moon	Earth's Moon
Discovered By	Known by the Ancients	Known by the Ancients
Date of Discovery	Unknown	Unknown
Average Orbit Distance	384,400 km	384,400 km
Perigee (closest)	363,104 km	363,104 km
Apogee (farthest)	405,696 km	405,696 km
Equatorial Radius	1737.5 km	1737.5 km
Equatorial Circumference	10,917.0 km	10,917.0 km
Volume	21,971,669,064 km3	21,971,669,064 km3
Mass	73,476,730,924,573,500,000,000 kg	73,476,730,924,573,500,000,000 kg
Density	3.344 g/cm3	3.344 g/cm3
Surface Area	37,936,694.79 km2	37,936,694.79 km2
Equatorial Surface Gravity	1.624 m/s2	1.624 m/s2
Escape Velocity	8,552 km/h	8,552 km/h
Rotation Period (Length of Day)	27.322 sidereal days	27.322 sidereal days
Orbit Period (Length of Year)	0.074803559 sidereal years	0.074803559 sidereal years
Mean Orbit Velocity	3,680.5 km/h	3,680.5 km/h
Orbit Eccentricity	0.0554	0.0554
Orbit Inclination to Ecliptic	5.16 degrees	5.16 degrees
Equatorial Inclination to Orbit	6.68 degrees	6.68 degrees
Orbit Circumference	2,413,402.16 km	2,413,402.16 km
Minimum/Maximum Surface Temperature	-233/123 °C	-233/123 °C