1. LECTURE 12, OCTOBER 5, 2010 ASTR 101, SECTION 3 INSTRUCTOR, JACK BRANDT jcbrandt@unm.edu 1ASTR 101-3, FALL 2010

2. 2

3. 3

4. 4

5. 5

6. 6

7. 7

8. 8

9. 9

10. 10

11. The surface of which jovian moon most resembles the pack ice of the Arctic Ocean? Question 2 a) Europa b) Io c) Amalthea d) Ganymede e) Callisto

12. 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) Europa b) Io c) Amalthea d) Ganymede e) Callisto

13. What is thought to cause Io’s volcanism? Question 3 a) Jupiter’s magnetosphere b) Jupiter’s rapid rotation c) tidal stress from Jupiter and Europa d) radioactive decay from its core e) Io’s large mass and tectonic activity

14. What is thought to cause Io’s volcanism? Question 3 a) Jupiter’s magnetosphere b) Jupiter’s rapid rotation c) tidal stress from Jupiter and Europa d) radioactive decay from its core e) Io’s large mass and tectonic activity Io is constantly “squeezed” by its huge neighbor as well as by companion moons, heating its interior.

15. ASTR 101-3, FALL 201015

16. ASTR 101-3, FALL 201016

17. ASTR 101-3, FALL 201017

18. ASTR 101-3, FALL 201018

19. ASTR 101-3, FALL 201019

20. ASTR 101-3, FALL 201020

21. ASTR 101-3, FALL 201021

22. Question 8 a) our Moon b) Phobos c) Europa d) Titan e) Triton Which moon in the solar system shows a dense atmosphere?

23. Question 8 a) our Moon b) Phobos c) Europa d) Titan e) 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.

24. ASTR 101-3, FALL 201024

25. ASTR 101-3, FALL 201025

26. ASTR 101-3, FALL 201026

27. ASTR 101-3, FALL 201027

28. ASTR 101-3, FALL 201028

29. ASTR 101-3, FALL 201029

30. ASTR 101-3, FALL 201030

31. 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.

32. 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.

33. 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.

34. 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.

35. ASTR 101-3, FALL 201035

36. ASTR 101-3, FALL 201036

37. ASTR 101-3, FALL 201037

38. ASTR 101-3, FALL 201038

39. ASTR 101-3, FALL 201039

40. ASTR 101-3, FALL 201040