the moon - fatcowvincentlloyd.fatcow.com/public/23moon.pdf · universe 2 astronomy 20 4 the moon...

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Universe 1 Astronomy 20 1 The Moon Our Nearest Neighbor Astronomy 20 2 The Moon Moon Influences The month Month = moonth Easter & Passover Tides Full Moon madness Menstrual Cycle Astronomy 20 3 The Moon The Moon Illusion

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Page 1: The Moon - FatCowvincentlloyd.fatcow.com/Public/23Moon.pdf · Universe 2 Astronomy 20 4 The Moon Astronomy 20 5 The Moon Harvest Moon Nearest full moon to the Sept. equinox The Moon

Universe 1

Astronomy 20 1

The MoonOur Nearest Neighbor

Astronomy 20 2

The Moon

Moon Influences The month

Month = moonth Easter & Passover Tides Full Moon madness Menstrual Cycle

Astronomy 20 3

The Moon

The Moon Illusion

Page 2: The Moon - FatCowvincentlloyd.fatcow.com/Public/23Moon.pdf · Universe 2 Astronomy 20 4 The Moon Astronomy 20 5 The Moon Harvest Moon Nearest full moon to the Sept. equinox The Moon

Universe 2

Astronomy 20 4

The Moon

Astronomy 20 5

The Moon

Harvest Moon Nearest full moon to the Sept. equinox The Moon rises just after sunset for

several days in a row.

Astronomy 20 6

The Moon

Blue Moon

Trivial Pursuit: The second fullmoon in a calendar month isa Blue Moon.

Reality: “Once in a blue moon”means never.

Page 3: The Moon - FatCowvincentlloyd.fatcow.com/Public/23Moon.pdf · Universe 2 Astronomy 20 4 The Moon Astronomy 20 5 The Moon Harvest Moon Nearest full moon to the Sept. equinox The Moon

Universe 3

Astronomy 20 7

The Moon

Why the Moon Shouldn’t Be There

Other terrestrial planetslack large moons.

Other moons are tinycompared with their planets.

Astronomy 20 8

The Moon

What if there were no Moon?

Fast rotation Constant winds No tides

no life on land? Varying tilt

bizarre seasons

Astronomy 20 9

The Moon

Formation of the MoonThe Giant Impact Theory

Density: 3.3 -> very small core. Moon formed from mantle material. Lack of "volatiles" (water).

Page 4: The Moon - FatCowvincentlloyd.fatcow.com/Public/23Moon.pdf · Universe 2 Astronomy 20 4 The Moon Astronomy 20 5 The Moon Harvest Moon Nearest full moon to the Sept. equinox The Moon

Universe 4

Astronomy 20 10

The Moon

Near Side – Far Side

Orbital period – 27 days Rotation period – 27 days Synchronous rotation Noon to noon – 30 days Far side is not dark. Earth never sets.

Earthshine

Astronomy 20 11

The Moon

Size and Distance

Diameter: 1/4 x Earth LA to Chicago 13th largest world. 1/80 Earth mass Distance: 30 Earth diameters

Earth and Moon fromMars Global Surveyor

Astronomy 20 12

The Moon

Smallest Terrestrial Planet No atmosphere No geological activity.

Earth and Moon from Galileo

Page 5: The Moon - FatCowvincentlloyd.fatcow.com/Public/23Moon.pdf · Universe 2 Astronomy 20 4 The Moon Astronomy 20 5 The Moon Harvest Moon Nearest full moon to the Sept. equinox The Moon

Universe 5

Astronomy 20 13

The Moon

Surface Geology

Highlands

Maria

Mare Crisium

Mare Imbrium

Oceanus Procellarum

Astronomy 20 14

The Moon

Full Moon

Tycho

Copernicus

Astronomy 20 15

The Moon

Topographic Moon

Big Backside Basin

MareOrientale

Lunar Highlands

Ocean of Storms Mare Humboldtianum

Page 6: The Moon - FatCowvincentlloyd.fatcow.com/Public/23Moon.pdf · Universe 2 Astronomy 20 4 The Moon Astronomy 20 5 The Moon Harvest Moon Nearest full moon to the Sept. equinox The Moon

Universe 6

Astronomy 20 16

The Moon

Highlands

Bright. Mountainous Heavily

cratered 4 billion years

old.

Astronomy 20 17

The Moon

Impact Craters Rim Central peak Ejecta blanket Secondary

craters

EratosthenesCopernicus

Astronomy 20 19

The Moon

Impact Basins

>1000 km across. Bull’s eye Filled with lava flows.

Mare Orientale

Page 7: The Moon - FatCowvincentlloyd.fatcow.com/Public/23Moon.pdf · Universe 2 Astronomy 20 4 The Moon Astronomy 20 5 The Moon Harvest Moon Nearest full moon to the Sept. equinox The Moon

Universe 7

Astronomy 20 23

The Moon

The Far Side

South Pole-AitkenBasin AKA “BigBackside Basin”

Astronomy 20 25

The Moon

Filled craters What's the difference?

Astronomy 20 26

The Moon

The Maria

Mare = sea Plural = maria Dark. Flat Lightly cratered. 4-3 billion years old

Mare Nubium

The Straight Wall

Page 8: The Moon - FatCowvincentlloyd.fatcow.com/Public/23Moon.pdf · Universe 2 Astronomy 20 4 The Moon Astronomy 20 5 The Moon Harvest Moon Nearest full moon to the Sept. equinox The Moon

Universe 8

Astronomy 20 27

The Moon

Rilles

Rilles are lava channels on theMoon.

Hadley Rille

Hadley Rille close-up

Astronomy 20 28

The Moon

Mare Imbrium

1234

5

6

Impacts and volcanism

Which process produced thesefeatures?

Astronomy 20 29

The Moon

Lunar rocks

Highland breccia

Mare basalt

Highland anorthosite

Page 9: The Moon - FatCowvincentlloyd.fatcow.com/Public/23Moon.pdf · Universe 2 Astronomy 20 4 The Moon Astronomy 20 5 The Moon Harvest Moon Nearest full moon to the Sept. equinox The Moon

Universe 9

Astronomy 20 30

The Moon

Regolith

Several meters deep. Erosion by micrometeorites.

Astronomy 20 31

The Moon

Apollo Missions(1969-1972)

6 missions 3 men each Apollo 11, 12, 14 -

walked. Apollo 15, 16, 17 –

rovers.

Astronomy 20 32

The Moon

Saturn V Rocket

Height: 313 ft Thrust: 7 million lb

Page 10: The Moon - FatCowvincentlloyd.fatcow.com/Public/23Moon.pdf · Universe 2 Astronomy 20 4 The Moon Astronomy 20 5 The Moon Harvest Moon Nearest full moon to the Sept. equinox The Moon

Universe 10

Astronomy 20 33

The Moon

Command Module 3 men used on way to moon

Astronomy 20 34

The Moon

Lunar Lander(LM)

2 men Bottom

remained onMoon

Astronomy 20 35

The Moon

Lunar Roving Vehicle(LRV)

Length: 10 ft Range: 40 mi. Speed: 8 mph Power: two

36V batteries

Page 11: The Moon - FatCowvincentlloyd.fatcow.com/Public/23Moon.pdf · Universe 2 Astronomy 20 4 The Moon Astronomy 20 5 The Moon Harvest Moon Nearest full moon to the Sept. equinox The Moon

Universe 11

Astronomy 20 38

The Moon

On the Moon Gravity 1/6 g No air No sound Dark sky 2 weeks daylight 2 weeks night Temp.: dry ice to

boiling.