1. What is luminosity? 2. Does the luminosity of a star depend on the star\'s di
ID: 159612 • Letter: 1
Question
1. What is luminosity?
2. Does the luminosity of a star depend on the star's distance from us?
3. From which layer of the sun does the sun's light come?
4. Name the interior parts of the sun.
5. Name the atmospheric parts of the sun.
6. What is the temperature of the sun's surface?
7. What does the chromosphere tell us about the sun?
8. What's unique about the coronal layer of the sun?
9. What is the most significant feature about the core of the sun?
10. What single property of a star determines its final state at "death"?
11. What will happen to the sun when it runs out of hydrogen which is hot enough to fuse?
12. Which two properties allow you to place a star on the Hertzsprung-Russell diagram?
13. What is a red giant star?
14. Will the sun ever be a nova? Why or why not?
15. Will the sun ever be a supernova? Why or why not?
16. What determines the changes in a star's life cycle?
17. What is the astronomical origin of the iron in your blood?
18. Why do supernovas occur?
19. What temperature is required for hydrogen fusion? For helium fusion?
20. What do all main sequence stars have in common?
21. A main-sequence star doesn't collapse because of the outward _____ produced by hot gases in the stellar interior.
22. While a star is on the main sequence, _____ is slowly consumed in the core and _____ builds up.
23. At the end of its main-sequence lifetime, a star’s core starts to _____.
24. What type(s) of objects remain after a high mass star dies?
25. What type(s) of objects remain after a low mass star dies?
26. When the sun evolves past the main sequence stage of life will its luminosity and surface temperature change? If so, how so?
27. From which layer of the sun does the sun's light come?
28. Name the interior parts of the sun.
29. Name the atmospheric parts of the sun.
30. What is the temperature of the sun's surface?
31. What does the chromosphere tell us about the sun?
32. What's unique about the coronal layer of the sun?
33. What is the most significant feature about the core of the sun?
34. What single property of a star determines its final state at "death"?
35. What will happen to the sun when it runs out of hydrogen which is hot enough to fuse?
36. What is a red giant star?
37. Will the sun ever be a nova? Why or why not?
38. Will the sun ever be a supernova? Why or why not?
39. What determines the changes in a star's life cycle?
40. What is the astronomical origin of the iron in your blood?
41. Why do supernovas occur?
42. What temperature is required for hydrogen fusion? For helium fusion?
43. What do all main sequence stars have in common?
44. A main-sequence star doesn't collapse because of the outward _____ produced by hot gases in the stellar interior.
45. While a star is on the main sequence, _____ is slowly consumed in the core and _____ builds up.
46. At the end of its main-sequence lifetime, a star’s core starts to _____.
47. What type(s) of objects remain after a high mass star dies?
48. What type(s) of objects remain after a low mass star dies?
49. When the sun evolves past the main sequence stage of life will its luminosity and surface temperature change? If so, how so?
Explanation / Answer
1) luminosity
Luminosity is the measurement of energy released by the luminous objects
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28) The core
Radiative zone
Convective zone
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30) temperature of the sun's surface
5,778 K
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