1. A look at the movements of the Moon
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 Terminator The line where the surface of the Moon meets the sky.
The imaginary line between the reflected light and shadow.

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

10. The Lunar Challenge!

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

12. Is this line the limb or terminator?

13. Name this phase!
First Quarter

14. Name this phase!
Waxing Crescent

15. Name this phase!
Waning Gibbous

16. Name this phase!
Third Quarter

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

18. Name this phase!
Waxing Gibbous

19. Name this phase!
Waning Crescent

20. Is this line the limb or the terminator?

21. Name this phase!
Look closely!
Waxing Gibbous

22. Name this phase!
Full Moon

23. Name this phase!
New Moon

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

25. Name this phase!
Waning Gibbous

26. Name this phase!
Waning Crescent

27. Photo resources http://www.nasm.si.edu/apollo/AS15/a15images.htm

28. More photo resources