Embed Size (px)
Citation preview
ASTR 101-3, FALL 2010 1
LECTURE 12, OCTOBER 5, 2010
ASTR 101, SECTION 3INSTRUCTOR, JACK BRANDT
ASTR 101-3, FALL 2010 2
ASTR 101-3, FALL 2010 3
ASTR 101-3, FALL 2010 4
ASTR 101-3, FALL 2010 5
ASTR 101-3, FALL 2010 6
ASTR 101-3, FALL 2010 7
ASTR 101-3, FALL 2010 8
ASTR 101-3, FALL 2010 9
ASTR 101-3, FALL 2010 10
The surface of which jovian moon most resembles the pack ice of the Arctic Ocean?
Question 2
a) Europa b) Ioc) Amalthead) Ganymedee) Callisto
The surface of which jovian moon most resembles the pack ice of the Arctic Ocean?
Question 2
Ice-filled surface cracks
indicate an ocean may lie
below.
a) Europab) Ioc) Amalthead) Ganymedee) Callisto
What is thought to cause Io’s volcanism?
Question 3
a) Jupiter’s magnetosphereb) Jupiter’s rapid rotationc) tidal stress from Jupiter and Europad) radioactive decay from its coree) Io’s large mass and tectonic activity
What is thought to cause Io’s volcanism?
Question 3
a) Jupiter’s magnetosphereb) Jupiter’s rapid rotationc) tidal stress from Jupiter and Europad) radioactive decay from its coree) Io’s large mass and tectonic activity
Io is constantly “squeezed” by its huge neighbor as well as by companion
moons, heating its interior.
ASTR 101-3, FALL 2010 15
ASTR 101-3, FALL 2010 16
ASTR 101-3, FALL 2010 17
ASTR 101-3, FALL 2010 18
ASTR 101-3, FALL 2010 19
ASTR 101-3, FALL 2010 20
ASTR 101-3, FALL 2010 21
Question 8
a) our Moonb) Phobosc) Europad) Titane) Triton
Which moon in the solar system shows a dense atmosphere?
Question 8
a) our Moonb) Phobosc) Europad) Titane) Triton
Which moon in the solar system shows a dense atmosphere?
The Huygens probe, deployed by the Cassini spacecraft in 2005, showed that
Titan’s atmosphere has a complex organic chemistry.
ASTR 101-3, FALL 2010 24
ASTR 101-3, FALL 2010 25
ASTR 101-3, FALL 2010 26
ASTR 101-3, FALL 2010 27
ASTR 101-3, FALL 2010 28
ASTR 101-3, FALL 2010 29
ASTR 101-3, FALL 2010 30
The Roche limit is defined as the critical
Question 5
a) distance from a planet, inside of which a moon can be tidally destroyed.
b) density that a moon can have and be solid.c) distance from a planet that a moon can experience
synchronous rotation.d) mass a moon can have and still be classified as a
moon.
The Roche limit is defined as the critical
Question 5
a) distance from a planet, inside of which a moon can be tidally destroyed.
b) density that a moon can have and be solid.c) distance from a planet that a moon can experience
synchronous rotation.d) mass a moon can have and still be classified as a
moon.
Saturn’s rings, as well as those of the other jovian planets, lie within
its planet’s Roche limit.
Why are the rings of Saturn so bright?
Question 7
a) They are made of frozen metallic hydrogen.b) They contain glassy beads expelled by volcanoes
on Enceladus.c) They contain shiny bits of iron.d) Titan and other moons reflect additional glow onto
the rings. e) They are made of relatively new ice.
Why are the rings of Saturn so bright?
Question 7
a) They are made of frozen metallic hydrogen.b) They contain glassy beads expelled by volcanoes
on Enceladus.c) They contain shiny bits of iron.d) Titan and other moons reflect an additional glow
onto the rings. e) They are made of relatively new ice.
Saturn’s rings are perhaps only 50 million years old, the result of a small moon coming within
the planet’s Roche limit.
ASTR 101-3, FALL 2010 35
ASTR 101-3, FALL 2010 36
ASTR 101-3, FALL 2010 37
ASTR 101-3, FALL 2010 38
ASTR 101-3, FALL 2010 39
ASTR 101-3, FALL 2010 40
