The Moon

1
The Moon
2
The Moon

• Man in the Moon
• Imaginary image seen on the surface of the moon.
• Drawn in the dark maria (sea) and lighter
  highlands of the moon.
• Myths about image are found in many cultures.

http//en.wikipedia.org/wiki/Man_in_the_moon
3
Rotation and Revolution

• Why do we always see the same side of the moon?
• Moons rotation on its axis 27.3 days
• Moons revolution around Earth 27.3 days
• Revolution takes the same amount of time as
  rotation, so we always see the same side of the
  moon facing Earth.

http//www.youtube.com/watch?vOZIB_leg75Q
https//www.youtube.com/watch?vsNUNB6CMnE8t13
View of a rotating moon
4
Moon Phases and Eclipses
5
Moon Phases

• Moon Phases -the different forms the moon takes
  on when viewed from Earth.

6

• Phases depend on the relative positions of the
  Earth, Moon, and Sun.

http//astro.unl.edu/naap/lps/animations/lps.swf
7
We only can see the day side of the moon when
it reflects the sunlight.
8
New Moon

• Occurs when the moon is between the Earth and
  Sun.
• The lighted half of the moon is facing the Sun,
  the dark half is facing Earth.

9
New Moon Position
10
Waxing

• More of the illuminated half of the Moon can be
  seen each night. (Its getting bigger)
• Waxing First Waxing
• Crescent Quarter Gibbous

11
1st Quarter Position
12
Full Moon

• Occurs when the moon is opposite the sun, with
  the Earth in between.
• All of the Moons lighted half is facing the
  Earth.

13
Full Moon Position
14
Waning

• Less of the illuminated half is seen each night.
  (Its getting smaller)
• Waning Third Waning
• Gibbous Quarter Crescent

15
3rd Quarter Position
16
Shadow

• The Moons shadow appears to move from the right
  to the left.

Left
Right
17
Complete Moon Phase Cycle
Crescent 1st qtr Gibbous Gibbous
3rd Qtr Crescent
NEW I------------ WAXING ---------I
FULL I------------WANING----------I NEW
18
Oreo Moon Phases
19
Name the Phase Quiz
20
(No Transcript)
21
Full Moon
22
(No Transcript)
23
1st Quarter
24
(No Transcript)
25
New Moon
26
(No Transcript)
27
3rd Quarter
28
(No Transcript)
29
Waning Gibbous
30
(No Transcript)
31
Waning Crescent
32
(No Transcript)
33
Waxing Gibbous
34
(No Transcript)
35
Waxing Crescent
36
Moon Phase sequence
Can you predict what phase will go into the ?
spaces?
http//sciencenetlinks.com/interactives/moon/moon_
challenge/moon_challenge.html
? .
? .
? .
37
(No Transcript)
38
Eclipses
39
Eclipses

• Caused by the revolution of the moon.
• Occurs when the moon blocks the sunlight from
  reaching the Earth or vice-versa.

40
Solar Eclipse

• Occurs when the moon moves directly in between
  the Earth and Sun and casts its shadow on the
  Earth.
• What phase is the moon?
• New Moon

41
Shadow of an eclipse

• Umbra-Darkest part of the shadow (total eclipse)
• Penumbra- Lighter, surrounding part of shadow
  (partial eclipse)

42
http//eclipse.gsfc.nasa.gov/OH/OH2014.htmlSE2014
Oct23P
43
October 23rd 545pmPartial Solar Eclipse
http//www.timeanddate.com/eclipse/in/usa/philadel
phia
44
(No Transcript)
45
Solar eclipse-notice the CMES around the sun.
Satellite photo of solar eclipse shadow on Earth,
notice the umbra and penumbra areas.
46
http//www.youtube.com/watch?vXMyqPxFh5Zw
47
Lunar Eclipse

• Occurs when the Earth moves directly between the
  Sun and the Moon. The Earths shadow falls on
  the Moon.
• What phase is the moon?
• Full Moon

48

• Sometimes, when the moon is in the umbra,
  sunlight is bent through Earths atmosphere
  causing a red color on the moon.

http//news.bbc.co.uk/1/hi/sci/tech/612949.stm
http//www.youtube.com/watch?vvMw7yamP4Rwfeature
related
49
(No Transcript)
50
Lunar Eclipse from the Moon
51
Will I see an eclipse?

• http//eclipse.gsfc.nasa.gov/eclipse.html

52
The moons orbit is tilted so eclipses are rare
events.
53
(No Transcript)
54
Moon Phases in the Southern Hemisphere

• http//www.tki.org.nz/r/science/day_night/index_e.
  php