Chapter 6: Terrestrial Planets -The Moon - PowerPoint PPT Presentation

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Chapter 6: Terrestrial Planets -The Moon

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Title: Day 11 - Ch. 5 - Moon Author: Brian Davies Last modified by: Brian M Davies Created Date: 4/28/2003 3:38:38 PM Document presentation format – PowerPoint PPT presentation

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Title: Chapter 6: Terrestrial Planets -The Moon


1
Chapter 6 Terrestrial Planets -The Moon
2
Earths interior is revealed by seismology, the
study of earthquakes. Layers are revealed
A layered object Inner core Outer
core Mantle Crust Hydrosphere Atmosphere Magnetosp
here
3
(No Transcript)
4
Earths Moon the interior is not as well
understood
Missing Hydrosphere Atmosphere Magnetosphere
5
Full Moon, Near Side
6
Far side of the Moon (taken by Apollo 16)
7
Two Faces of the Moon
Maria
Near Side
Far Side
8
Apollo and Luna Landing Sites
A15
A17
L24
L20
L16
A11
A12
A14
A16
9
Moon, Close Up, craters, maria, and highlands
10
Meteoroid Impact causes craters and ejecta
11
Lunar Craters, big and small (microscopic, even)
12
Lunar Surface is blanketed in dust from small
meteorites.
13
Lunar Tides are due to the gravity of the Moon
14
Solar and Lunar effects on Tides depend on the
relative orientations of the Earth, Moon, and
Sun
15
The tidal bulge is actually offset somewhat from
being directly underneath the Moon. This
produces a torque, a kind of twisting force on
the Earth.
The tides cause the Earth to slow down and the
Moons orbit to increase in radius (4 cm per
century). Also, the Moons rotation is
synchronous with its orbit.
16
The Moons formation is believed to be due to a
collision of a massive (Mars-sized) object with
the early Earth. Computer simulation show that
this could leave a moon-sized satellite in the
correct orbit.
17
Lunar Evolution the Moon after the early
bombardment
18
Lunar Evolution the formation of the maria by
volcanic eruptions
19
Lunar Evolution after 3 billion years of
cratering
20
Large Lunar Crater (note smaller recent craters)
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