moon phases a look at the movements of the moon. movements of the moon revolution – moon orbits...
TRANSCRIPT
Movements of the Moon
• Revolution – Moon orbits the Earth every 271/3 days
• The Moon rises in the east and sets in the west
• The Moon rises and sets 50 minutes later each day
• Rotation – Moon turns on its axis every 27 days
• Same side of Moon always faces Earth
Moon Rise Times
• The New Moon always rises at sunrise.
• The first quarter Moon rises at noon.
• The Full Moon rises at sunset.
• The last quarter Moon rises at midnight.
• Moonrise takes place about 50 minutes later each day than the day before.
It’s Just a Phase
• Moonlight is reflected sunlight
• Half the Moon’s surface is always reflecting light
• From Earth we see different amounts of the Moon’s lit surface
• The amount seen is called a “phase”
LimbThe line where the surface of the Moon meets the sky.
TerminatorThe imaginary line between the reflected light and shadow.
Photo resources• http://www.nasm.si.edu/apollo/AS15/a15images.ht
m• http://nssdc.gsfc.nasa.gov/photo_gallery/photogall
ery-moon.html#apollo• http://clementine.cnes.fr/index.en.html• http://cass.jsc.nasa.gov/pub/research/clemen/
clemen.html• http://spaceflightnow.com/news/
n0108/15mooncreate/• http://seds.lpl.arizona.edu/nineplanets/
nineplanets/pxmoon.html
More photo resources
• http://www.nrl.navy.mil/clementine/clemovies/clemovies_index.html
• http://www.solarviews.com/eng/moon.htm• http://news.bbc.co.uk/1/hi/sci/tech/620649.stm• http://skyandtelescope.com/observing/objects/
eclipses/article_99_1.asp• http://lunar.arc.nasa.gov/results/ice/eureka.htm• http://www.space.com/scienceastronomy/
solarsystem/moon_nss_020604.html