The document discusses the phases of the moon. It explains that waxing means the moon is getting bigger, waning means it is getting smaller, and new means it is not visible. It then shows diagrams labeling the phases as new, waxing crescent, waning crescent, waxing gibbous, waning gibbous, first quarter, third quarter, and full. The diagrams demonstrate that different moon phases can be seen at different times of the day or night.

1. PHASES OF THE MOON
20 February, 2014

2. WHAT TIME IS IT?
•
Generalized time, like sunrise and noon, not the exact number you’d read off your
watch

3. WHAT TIME IS IT?
noon

4. WHAT TIME IS IT?
Try it with the flashlights

5. WHAT TIME IS IT?
Note the time depends on where the Sun is!
sunset
•
noon

6. WHAT TIME IS IT?
noon
sunset
sunrise
midnight

7. MOON PHASES
•
Waxing = getting bigger
•
Waning = getting smaller
•
New = not visible

8. sunset
WHAT PHASE IS IT?

9. sunset
WHAT PHASE IS IT?

10. WHAT PHASE IS IT?
midnight

11. DOES THE PHASE DEPEND ON WHAT TIME IT IS?

12. LABEL THE PHASES
New, waxing crescent, waning crescent, waxing gibbous, waning gibbous, 1st
quarter, 3rd quarter, full

13. THE PHASES
3rd
Quarter
Waning
Gibbous
Waning
Crescent
New
Full
Waxing
Crescent
Waxing
Gibbous
1st
Quarter

14. CAN YOU SEE THIS MOON AT SUNSET?

15. sunset
CAN YOU SEE THIS MOON AT SUNSET?

16. PREDICTIONS!
•
If it is sunrise, what phases CAN you see?
•
What phases can you see mid evening (between sunset and midnight)?
•
What phase is “overhead” at sunrise?
•
When does a first quarter moon set?
•
If you want to look at faint nebula in the evening, what phases do you want the Moon to
be in?