NASA Home Sitemap
+
+
+
Solar System Exploration Planets
SSE Home > Planets > Earth's Moon > Facts & Figures
Search
Solar System Exploration Home
News and Events
Planets
Sun
Missions
Science and Technology
Multimedia
People
Kids
Education
History
Moon: Overview Moon: Gallery Moon: Facts & Figures Moon: Kid's Eye View
Earth's Moon: Facts & Figures
Discovered By
Known by the Ancients
Date of Discovery
Unknown
Average Distance from Earth
Metric: 384,400 km
English: 238,855 miles
Scientific Notation: 3.84400 x 105 km (0.00257 A.U.)
By Comparison: 0.00257 x Earth's Distance from the Sun
Perigee (closest)
Metric: 363,300 km
English: 225,700 miles
Scientific Notation: 3.633 x 105 km (0.00243 A.U.)
By Comparison: 0.00247 x Earth's Distance from the Sun
Apogee (farthest)
Metric: 405,500 km
English: 252,000 miles
Scientific Notation: 4.055 x 105 km (0.00271 A.U.)
By Comparison: 0.00267 x Earth's Distance from the Sun
Equatorial Radius
Metric: 1737.4 km
English: 1079.6 miles
Scientific Notation: 1.734 x 103 km
By Comparison: 0.2724 x Earth
Equatorial Circumference
Metric: 10,916 km
English: 6,783 miles
Scientific Notation: 1.0916 x 104 km
Volume
Metric: 21,970,000 km3
Scientific Notation: 2.197 x 1010 km3
By Comparison: 0.020 x Earth
Mass
Metric: 73,483,000,000,000,000,000,000 kg
Scientific Notation: 7.3483 x 1022 kg
By Comparison: 0.0123 x Earth
Density
Metric: 3.341 g/cm3
By Comparison: 0.606 x Earth
Surface Area
Metric: 37,932,330 km2
English: 14,645,750 square miles
Scientific Notation: 3.793233 x 107 km2
By Comparison: 0.074 x Earth
Equatorial Surface Gravity
Metric: 1.622 m/s2
English: 5.322 ft/s2
By Comparison: 0.166 x Earth
Escape Velocity
Metric: 8,568 km/h
English: 5,324 mph
Scientific Notation: 2,380 m/s
By Comparison: 0.213 x Earth
Sidereal Rotation Period (Length of Day)
27.321661 Earth days
655.72 hours
By Comparison: Synchronous With Earth
Sidereal Orbit Period (Length of Year)
0.075 Earth years
27.321661 Earth days
By Comparison: Orbit Period = Rotation Period
Mean Orbit Velocity
Metric: 3,682.8 km/h
English: 2,288.4 mph
Scientific Notation: 1,023 m/s
By Comparison: 0.034 x Earth
Orbital Eccentricity
0.05490
By Comparison: 3.285 x Earth
Orbital Inclination to Ecliptic
5.145 degrees
By Comparison: Oscillates roughly 0.15 degrees in 173 days.
Equatorial Inclination to Orbit
6.68 degrees
Orbital Circumference
Metric: 2,290,000 km
English: 1,423,000 miles
Scientific Notation: 2.290 x 106 km
Minimum/Maximum Surface Temperature
Metric: -233/123 °C
English: -387/253 °F
Scientific Notation: 40/396 K

Additional Information:

Because of the gravitational pull of the Sun, the extreme ranges of the Moon from the Earth are from 356,400 km to 406,700 km.
Explore more of NASA on the Web:
Go!
Go!
FirstGov - Your First Click to the U.S. Government
+
+
+
+
+
+
NASA Home Page
Acting Editor: Kirk Munsell
Webmaster: David Martin
NASA Official: Orlando Figueroa
Last Updated: 05.27.05
+
+
+