Phases & Eclipses
Let's look  at the moon.
The terminator is the moving boundary between day and night. Notice that it moves right to left. The moon does not make it...
Daytime on the moon Night on the moon Terminator
Phases of the moon are caused by the angle between the earth, moon, and sun.
Lunar Phase animation Another animation Video clip on phases Notice that the terminator is moving right to left.
Waxing  means getting bigger every night. Waning  means getting smaller every night. Crescent  means less than half the su...
Review this diagram and name the phases on the following slides!
Waning crescent
Waxing gibbous
Waxing crescent
Last quarter
Waning crescent
Waning gibbous
First quarter
Eclipses - are named by which object's light is being blocked from your view! Two kinds: Lunar eclipses Solar eclipses Vid...
Lunar eclipse
Eclipse animation
Time lapse photography of a lunar eclipse
Animation of solar eclipse
Diamond ring effect just before or after a total solar eclipse.
This animation shows the relative sizes of the partial and total eclipse areas.  The small, black dot is the umbra.  You c...
This is a space shuttle photograph of an area of the Earth having a total solar eclipse.
Types of eclipses Link to  NASA eclipse page Be sure to scroll down for a list of upcoming eclipses.                      ...
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Phases And Eclipses

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Phases And Eclipses

  1. 1. Phases & Eclipses
  2. 2. Let's look at the moon.
  3. 3. The terminator is the moving boundary between day and night. Notice that it moves right to left. The moon does not make its own light. We see it because it reflects light from the sun.
  4. 4. Daytime on the moon Night on the moon Terminator
  5. 5. Phases of the moon are caused by the angle between the earth, moon, and sun.
  6. 6. Lunar Phase animation Another animation Video clip on phases Notice that the terminator is moving right to left.
  7. 7. Waxing means getting bigger every night. Waning means getting smaller every night. Crescent means less than half the surface of the moon facing you is lit by the sun. Gibbous means more than half of the surface of the moon facing you is lit by the sun.
  8. 8. Review this diagram and name the phases on the following slides!
  9. 9. Waning crescent
  10. 10. Waxing gibbous
  11. 11. Waxing crescent
  12. 12. Last quarter
  13. 13. Waning crescent
  14. 14. Waning gibbous
  15. 15. First quarter
  16. 16. Eclipses - are named by which object's light is being blocked from your view! Two kinds: Lunar eclipses Solar eclipses Video clip on eclipses
  17. 17. Lunar eclipse
  18. 18. Eclipse animation
  19. 19. Time lapse photography of a lunar eclipse
  20. 20. Animation of solar eclipse
  21. 21. Diamond ring effect just before or after a total solar eclipse.
  22. 22. This animation shows the relative sizes of the partial and total eclipse areas. The small, black dot is the umbra. You can see why not many people ever see a total eclipse.
  23. 23. This is a space shuttle photograph of an area of the Earth having a total solar eclipse.
  24. 24. Types of eclipses Link to NASA eclipse page Be sure to scroll down for a list of upcoming eclipses.                                                                                                                   

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