1. You only need to write what is in bold and underlined
Now for some important (and interesting) information to make sure you have in your MOON BOOK NOTES
You only need to write what is in bold and underlined

2. Moon Info
It takes the same amount of time for the moon to rotate on its axis as it does to revolve around the Earth (27.3 days)
This is the reason why the Earth only sees one side of the moon – in order to see the other side you need to get on a space ship and go around the moon!
There are 29.5 days from a new moon to the next new moon

3. Reason for Moon Phase Cycle Length
This is showing the cycle from full moon to the next full moon

4. Moon Info The lit part of the moon always points towards the sun.
When waxing: light is on the right
When waning: shadow is on the right

5. The moon rise, moon set
The time of the moon rise and set depends on its phase
Rises in the East and sets in the West – due to Earth’s rotation
Remember: moon rises about 50 min later each day of the moon phase cycle (~ 25 to 75 mins)
Phase
Rise Time
Midpoint in sky
Set Time
New
Sunrise
Noon
Sunset
1st quarter
Midnight
Full
3rd quarter

6. Can you identify the phase?
Full
Last (3rd) Quarter
Waxing Gibbous
Waning Crescent
First Quarter
Waning Gibbous
New
Waxing Crescent

7. GOOOO G-Men!

8. Tides
Tides are the rise and fall of water – rise for about 6 hours then fall for about 6 hours
Tides occur because the moon’s gravity does not pull with the same force on all parts of the Earth

9. High Tides
Location A: Moon’s gravitational force on the water is greater than its force on the Earth as a whole
Water here is pulled more towards the moon than the Earth = high tide C B A D

10. High Tides
Location B: The moon’s gravitational force on the Earth as a whole is stronger than its force on the water
The Earth is pulled more towards the moon and the water is “left behind” = high tide C B A D

11. Low Tides
Locations C and D: Water flows away from these locations towards points A and B = low tide C B A D

12. Spring and Neap The Sun’s gravity also pulls on Earth’s waters
Sometimes the sun’s and moon’s gravity work together (spring tide)
Sometimes they pull on the water at right angles (neap tide)
Spring and Neap tides both happen twice a month

13. Spring Tide during full & new moons
during full & new moons
highest high tides & lowest low tides
Greatest tidal range (difference between high and low tide)

14. Neap Tide Neap tide: during first & last quarter moons
lowest high tides & highest low tides
Smallest tidal range

15. Shadows
Umbra: darkest part of shadow: this shadow causes total eclipses
Penumbra: Outer, less dark shadow

16. Lunar Eclipse
Moon in Earth’s shadow (Earth blocking sunlight from hitting Moon)
Earth cannot “see” the moon
Order: Sun, Earth, Moon
Do not have an eclipse every full moon because moon’s orbit is at an angle
Moon

17. Lunar Eclipse Total: Moon entirely in Earth’s umbra
Partial: Moon partially in Earth’s umbra
Penumbral: Moon in Earth’s penumbra
Moon

18. Lunar Eclipse
Eclipsed moon looks redish orange (rust) because some sunlight bends as it passes through Earth’s atmosphere before hitting the moon

19. Lunar Eclipse Last total lunar eclipse was on February 20, 2008
Last partial – June 26, 2010 (we couldn’t see this in CT)
Next total eclipse on Dec 21, 2010
Generally 2 eclipses (total, partial or penumbral) a year

20. Picture of the entire length of March 2007’s Eclipse
Stefan Seip (TWAN)

21. Solar Eclipse
Earth is in moon’s shadow (moon blocking sunlight from hitting Earth)
Earth cannot “see” the sun
Order: Sun, Moon, Earth

22. Solar Eclipse Total: Earth in Moon’s umbra
Partial: Earth in Moon’s penumbra

23. Total Solar Eclipse – you see the Sun’s Corona

24. Pictures of Annular Eclipses
Annular: moon is at a point where it is not big enough to block all of the sunlight: a ring of sunlight is visible

25. Solar Eclipse Last total eclipse = Jul 11, 2010 – seen in Chile
There are only partial eclipses in 2011
Next total eclipse = Nov 13, 2012– seen in Australia
Next eclipse visible in Eastern USA – a partial eclipse in 2014
There can be eclipses (total, partial or annular) a year (at most 5)

26. Solar Eclipse
Anyone in the dark blue saw a total eclipse

27. Eclipses 2010 Solar and Lunar Eclipses of 2010
Annular Solar Eclipse of 2010 Jan 15
Partial Lunar Eclipse of 2010 Jun 26
Total Solar Eclipse of 2010 Jul 11
Total Lunar Eclipse of 2010 Dec 21

28. Eclipses 2011 Solar and Lunar Eclipses of 2011
Partial Solar Eclipse of 2011 Jan 04
Partial Solar Eclipse of 2011 Jun 01
Total Lunar Eclipse of 2011 Jun 15
Partial Solar Eclipse of 2011 Jul 01
Partial Solar Eclipse of 2011 Nov 25
Total Lunar Eclipse of 2011 Dec 10

29. List of Eclipses