صفحه 1:
صفحه 2:
What is the
Moon?
¢ A natural satellite
¢ One of more than 96
moons in our Solar
صماوره
¢ The only moon of the
planet Earth
صفحه 3:
¢ The moon is a “natural satellite”.
۱ ۱۱۱
planet.
* Artificial satellites, ones made by
humans, have four main uses:
- Communications ce
- Monitoring the weather
- Observing the Earth
- Exploring the solar system
صفحه 4:
Where is the moon?
* About 384,000
km (240,000
miles) from
۱-۹
¢ 3,468 km
(2,155 miles) in
diameter (about
Y, the size of
|
صفحه 5:
How does the moon
و۱۹۱۵
* It revolves or orbits the Earth
about every 27 days
* It rotates on its axis once
0
* Since the moon rotates and
revolves at the same rate, the
same side of Moon always
4
صفحه 6:
What’s up there?
* No atmosphere
* No liquid water
¢ Extreme
temperatures
- Daytime = 130°C
(265°F)
- Nighttime = -190°C
(-310 °F)
¢ 1/6 Earth’s gravity
- (Take your weight
and divide it by six)
صفحه 7:
What does the
land look like
on the moon?
صفحه 8:
Highlands
* Mountains up to
7500 m (25,000 ft)
21
* Rilles (trench-like
valleys)
صفحه 9:
Craters
* Up to 2500 km (1,553 miles) across
* Most formed by meteorite impacts on the Moon
* Some formed by volcanic action inside the
Moon
صفحه 10:
۱/۱
Originally thought to
be “seas” by early
astronomers
Darkest parts of
lunar landscape
111160 تتعقة وتكق1 ترط
crash of huge
meteorites on lunar
surface 3-4 billion
years ago
Mostly basalt rock
صفحه 11:
9
11
صفحه 12:
How about the side we
can’t see?
¢ First seen by
SIL MGM UU rT ite vel
اهن bey
nie she)
* Surface features
different from
near side
- More craters
- تلع كرولا 3112
صفحه 13:
yy does it seer
o change shape:
* Moonlight is reflected
sunlight
PY ۳ ۳ > * Half the moon’s surface
ey ry gS 31 4
5 * From Earth we see
عط و(
Moon’s lit surface
6 1 نات نان لاه ن
called a “phase”
صفحه 14:
FOUR MAIN
© a ©
FULL ——
QUARTER GIBBOUS
صفحه 15:
Waxing
Gibbous
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feet a 5 Gibbous ۱
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صفحه 16:
Lunar Eclipses
* Moon moves into
Earth’s shadow -
this shadow
darkens the Moon 3 نا
About 2-3 per year *
© * Can last up to 4
1
130
hours
صفحه 17:
Solar Eclipses
* Moon moves
between Earth
and Sun
Moon casts a
shadow on part of
طضسة8 ۱9
¢ Total eclipses rare
- only once every
تت
one location!
صفحه 18:
The Tides
* Tides caused by pull of Moon’s gravity on
اتا
- High tide
* Side facing the Moon and side facing away from the Moon
OPN none Pee ttt
- Low tide -
00 etl
صفحه 19:
Exploring the
* Neil Armstrong - Moon
first human on the
Moon
- July 20, 1969
* Six Apollo
۱۱۱۱۱ داورفان
- 1969-1972
- 382 kg (842 lbs)
rocks
٠١ 12 Americans
have walked on
the moon
صفحه 20:
صفحه 21:
ere
صفحه 22:
صفحه 23:
Moon base of the future?
* What would you need to live there?
صفحه 24:
Photo resources
http://www.nasm.si.edu/apollo/AS15/a1 5images.htm
http://nssdc.gsfc.nasa.gov/photo_galle: hhotogallery-moo
n.html#apollo
http://clementine.cnes.fr/index.en.html
