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Moon phases
- 1. Moon Phases Alook at the movements of the Moon
- 2. Movements of theMoon • 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. It’s Just aPhase • 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”
- 4. Limb The line where the surface of the moon meets the sky. Terminator The imaginary line between he reflected light and hadow.
- 6. Waxing and Waning • New moon l s ( hir qua t r a t t d) r e wa Moon ning • Waxing Crescent moon m orb `s oon it erh at • First Quarter moon SUN cr s nt e ce gibb sm ou oon • Waxing Gibbous moon e rt a h • Full moon fl m u l oon • Waning Gibbous moon ne m w oon • Third Quarter moon • Waning Crescent moon cr s nt e ce gib ousm b oon • New moon w x Moon a ing f s qu r e ir t a t r
- 7. FOUR MAIN SHAPES FULL CRESCENT QUARTER GIBBOUS
- 10. Orbits (revolves around) Earth every 27.3 days Elliptical orbit (not a perfect circle) • About 384,000 km (240,000 miles) from Earth 360,000 km 406,000 km 10 224,000 miles 252,000 miles
- 11. 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.
- 13. Name this phase! Full Moon What time does this phase rise and set?
- 14. Is this linethe limb or terminator? Limb Terminator Is this line the limb or terminator?
- 15. Name this phase! First Quarter
- 16. Name this phase! Waxing Crescent
- 17. Name this phase! Waning Gibbous
- 18. Name this phase! Third Quarter
- 19. From what directiondoes the moon rise? The East
- 20. Name this phase! WaxingGibbous
- 21. Name this phase! WaningCrescent
- 22. Is this linethe limb or the terminator? Limb
- 23. Name this phase! Look closely! Waxing Gibbous
- 24. Name this phase! Full Moon
- 25. Name this phase! New Moon
- 26. Does the moonrise or set in the west? It sets in the west.
- 27. Name this phase! WaningGibbous
- 28. Name this phase! Waning Crescent
- 29. Photo resources • http://www.nasm.si.edu/apollo/AS15/a15images.htm • http://nssdc.gsfc.nasa.gov/photo_gallery/photogallery-m • http://clementine.cnes.fr/index.en.html • http://cass.jsc.nasa.gov/pub/research/clemen/clemen.htm • http://spaceflightnow.com/news/n0108/15mooncreate/ • http://seds.lpl.arizona.edu/nineplanets/nineplanets/pxmoo
- 30. More photo resources • http://www.nrl.navy.mil/clementine/clemovies/clemovies • http://www.solarviews.com/eng/moon.htm • http://news.bbc.co.uk/1/hi/sci/tech/620649.stm • http://skyandtelescope.com/observing/objects/eclipses/ar • http://lunar.arc.nasa.gov/results/ice/eureka.htm • http://www.space.com/scienceastronomy/solarsystem/mo Leesa Hubbard Teacher in Residence Sally Ride Science