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Moon Phases

Moon Phases

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Moon Phases

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  1. Moon Phases A look at the movements of the Moon

  2. 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

  3. 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.

  4. 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”

  5. Limb The line where the surface of the Moon meets the sky. Terminator The imaginary line between the reflected light and shadow.

  6. FOUR MAIN SHAPES FULL CRESCENT Four Basic Shapes GIBBOUS QUARTER

  7. The Lunar Challenge!

  8. Name this phase! Full Moon What time does this phase rise and set?

  9. Is this line the limb or terminator? Limb Terminator Is this line the limb or terminator?

  10. Name this phase! First Quarter

  11. Name this phase! Waxing Crescent

  12. Name this phase! Waning Gibbous

  13. Name this phase! Third Quarter

  14. From what direction does the Moon rise? The East

  15. Name this phase! Waxing Gibbous

  16. Name this phase! Waning Crescent

  17. Is this line the limb or the terminator? Limb

  18. Name this phase! Look closely! Waxing Gibbous

  19. Name this phase! Full Moon

  20. Name this phase! New Moon

  21. Does the moon rise or set in the west? It sets in the west.

  22. Name this phase! Waning Gibbous

  23. Name this phase! Waning Crescent

  24. Photo resources • http://www.nasm.si.edu/apollo/AS15/a15images.htm • http://nssdc.gsfc.nasa.gov/photo_gallery/photogallery-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

  25. 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