Earth and Moon Statistics
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![Page 1: Earth and Moon Statistics](https://reader030.fdocuments.us/reader030/viewer/2022032606/56812e51550346895d93f2ad/html5/thumbnails/1.jpg)
Earth and Moon
Statistics
http://solarsystem.nasa.gov/multimedia/gallery/Earth_Moon.jpg
By the Lunar and Planetary Institute
For use in teacher workshops
![Page 2: Earth and Moon Statistics](https://reader030.fdocuments.us/reader030/viewer/2022032606/56812e51550346895d93f2ad/html5/thumbnails/2.jpg)
Earth’s MoonWhat’s the Moon like?
What do people see when they look at the Moon?
http://photojournal.jpl.nasa.gov/catalog/PIA00094
![Page 3: Earth and Moon Statistics](https://reader030.fdocuments.us/reader030/viewer/2022032606/56812e51550346895d93f2ad/html5/thumbnails/3.jpg)
http://www.lpi.usra.edu/resources/mapcatalog/LandingSite/index.html
![Page 4: Earth and Moon Statistics](https://reader030.fdocuments.us/reader030/viewer/2022032606/56812e51550346895d93f2ad/html5/thumbnails/4.jpg)
http://solarsystem.nasa.gov/multimedia/display.cfm?IM_ID=1757
How Big is the Moon?
![Page 5: Earth and Moon Statistics](https://reader030.fdocuments.us/reader030/viewer/2022032606/56812e51550346895d93f2ad/html5/thumbnails/5.jpg)
Moon Size
~ 1/4 width of Earth
Radius of 1080 miles
Gravity ~1/6 of Earth’s
http://grin.hq.nasa.gov/IMAGES/SMALL/GPN-2000-001444.jpg
![Page 6: Earth and Moon Statistics](https://reader030.fdocuments.us/reader030/viewer/2022032606/56812e51550346895d93f2ad/html5/thumbnails/6.jpg)
Relative Size and Distance of Earth and Moon?
http://nix.ksc.nasa.gov/info;jsessionid=gfuzp418gewa?id=C-1979-00910&orgid=2
![Page 7: Earth and Moon Statistics](https://reader030.fdocuments.us/reader030/viewer/2022032606/56812e51550346895d93f2ad/html5/thumbnails/7.jpg)
http://visibleearth.nasa.gov/view_rec.php?id=1624
Earth and Moon to Scale
If Earth were a basketball, then the Moon would be a
tennis ball,
23.5 feet away
![Page 8: Earth and Moon Statistics](https://reader030.fdocuments.us/reader030/viewer/2022032606/56812e51550346895d93f2ad/html5/thumbnails/8.jpg)
Moon Stats No light of its own!!
![Page 9: Earth and Moon Statistics](https://reader030.fdocuments.us/reader030/viewer/2022032606/56812e51550346895d93f2ad/html5/thumbnails/9.jpg)
Moon Rotation Spins on axis (rotates) once every 27.3 days
Tilted ~7 degrees (Earth = 23.5)
![Page 10: Earth and Moon Statistics](https://reader030.fdocuments.us/reader030/viewer/2022032606/56812e51550346895d93f2ad/html5/thumbnails/10.jpg)
Moon’s Orbit Orbits (revolves around) Earth every 27.3 days
Elliptical orbit (not a perfect circle)
360,000 km 406,000 km 224,000 miles 252,000 miles http://solarsystem.nasa.gov/multimedia/display.cfm?IM_ID=442
![Page 11: Earth and Moon Statistics](https://reader030.fdocuments.us/reader030/viewer/2022032606/56812e51550346895d93f2ad/html5/thumbnails/11.jpg)
The Near Side The Moon rotates in 27.3 days.
The Moon orbits Earth in 27.3 days.
Because the Moon rotates and revolves at the same rate, we only see one side The NEAR side
There is NO DARK SIDE
There is a FAR side….
![Page 12: Earth and Moon Statistics](https://reader030.fdocuments.us/reader030/viewer/2022032606/56812e51550346895d93f2ad/html5/thumbnails/12.jpg)
And the Backside!
The FAR side
http://photojournal.jpl.nasa.gov/catalog/PIA00304
![Page 13: Earth and Moon Statistics](https://reader030.fdocuments.us/reader030/viewer/2022032606/56812e51550346895d93f2ad/html5/thumbnails/13.jpg)
Moon Stats Moon’s orbit around Earth is inclined about 5 degrees to Earth’s plane of orbit around the Sun
Ecliptic plane
Sun EarthMoon
Moon’s orbital plane
Image created by LPI staff