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Moon Phases

Moon Phases. Understand how Moon phases work on the Earth More world building! Examples: Indigenous religions, local calendars Werewolves, spaceflight, tides and ocean travel Bad example: “ The Moon told me so. ”. Which situation would produce this phase?. D. C. B. A. Demos.

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Moon Phases

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  1. Moon Phases • Understand how Moon phases work on the Earth • More world building! • Examples: • Indigenous religions, local calendars • Werewolves, spaceflight, tides and ocean travel • Bad example: “The Moon told me so.”

  2. Which situation would produce this phase? D C B A

  3. Demos • Three views of Moon Phases: http://astro.unl.edu/classaction/animations/lunarcycles/moonphases.html • Moon Phases and where in sky: http://astro.unl.edu/classaction/animations/lunarcycles/lunarapplet.html

  4. Cause=Sun-Moon-Earth angles

  5. http://www.astronomy.ohio-state.edu/~pogge/Ast161/Unit2/Images/moonphase.gifhttp://www.astronomy.ohio-state.edu/~pogge/Ast161/Unit2/Images/moonphase.gif

  6. Which situation would produce this phase?

  7. Western cultures recognize 8 Moon phases, some spread over multiple nights 1 2 3 5 6 4 7 8 1

  8. Phase cycle takes 29.53 days

  9. Waxing Crescent First Quarter Waxing Gibbous Waning Gibbous Full Last Quarter (not pictured) Waning Crescent New

  10. Traditional Hawaiian culture uses 30 Moon phases http://www.imiloahawaii.org/57/

  11. Bad Example:“The Moon told me so.” • In Rise of the Guardians (2012), the Moon is an important plot element, and over four days it is Full, Full, Waning Gibbous, and Full. Day 4 Day 1 Day 2 Day 3

  12. Worksheet!

  13. What if there are multiple moons? • Each moon would have a different orbital period • Each would be at a different angle to the Sun on a given day • Each would be in a different phase on the same day • The order of phases would be the same (unless retrograde), but might last for longer or shorter times

  14. More Misconceptions • http://www.youtube.com/watch?v=LqaDf2fuUH8

  15. Tonight is Waning Gibbous, will we see it? • Resource: USNO (US Naval Observatory for Sun/Moon rise/set times

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