1. What do stars look like up close?
2. What is a red giant star?
3. What happens to the dust in a forming solar system?
4. How big is the largest star known compared to the Sun?
5. What is the range in masses for stars?
6. How can the maximum masses of white dwarfs and neutron stars be the same?
7. How do astronomers determine the size and distances of stars?
8. Why isn't Ophiuchus a zodiacal constellation?
9. Where can I get data on stars within 250 light years of the Earth?
10. Where can I get information about the constellations, specifically Ursa major?
11. Relative to the size of our solar system, how close together are stars in globular clusters?
12. Can we see individual stars that are outside our galaxy?
13. Can astronomers predict when a star will become a nova or a supernova?
14. How many constellations are there?
15. What is the Main Sequence?
16. How old are the oldest stars?
17. How many stars are born each year?
18. How many stars are there?
19. What is a starquake?
20. What is the definition of a variable star?
21. Do stars ever gain mass after they are formed?
22. Has the Hubble Space Telescope looked at any of the nearby stars?
23. Why does the bright star Sirius sparkle and not planets of the same brightness?
24. Is there a minimum and a maximum size to stars and black holes?
25. Since we see stars the way they were thousands of years ago, could some of them already be gone?
26. How long does it take for stars to form?
27. How hot do stars get?
28. How often do stars explode in space and become shooting stars?
29. How old do stars get?
30. Are there more grains of sand on the beach than stars in the universe?
31. Do stars move?
32. How did people estimate the distances to stars using a candle and a pin hole?
33. What is the physical reason why we can't see stars in the daytime?
34. Are the spectra of all the stars in the Milky Way different?
35. When we see stars, have they already burned up?
36. What fraction of naked eye stars are in the three categories, bright, less bright, and faint?
37. What is the magnitude of the faintest star you can see from a city with the naked eye?
38. What would happen to a planet orbiting a star that has supernovaed?
39. If all stars in a cluster have the same age, how then can clusters be used to study stellar evolution?
40. What is the relationship between a star's color and its temperature?
41. Does the Hyades cluster in Taurus have a Messier number, and if not, why?
42. What are the three most important types of variable stars?
43. Exactly how do astronomers determine distances to stars using parallax?
44. Are sunspots seen on other stars always dark?
45. Where can I get star charts?
46. How long is the average life of a star?
47. When a star burns out, what happens to its planets?
48. Is a brown dwarf a star or a planet?
49. Where can I get information about stellar spectral types, distances etc?
50. What is the difference between a globular cluster and an open cluster?
51. What is the largest distance between stars in a binary star system?
52. Can you see stars from the bottom of a well?
53. Are there any classification systems for planets and stars?
54. Can I have a star named after my wife on our anniversary?
55. How many stars can you see from the Earth?
56. Why aren't there any green stars?
57. How many stars are there like the Sun?
58. Is a supernova the same thing as a nova, but just brighter?
59. How often do stars collide in the Milky Way?
60. How fast do stars move through space?
61. Do stars ever loose mass after they are formed?
62. How did astronomers discover how stars were formed?
63. Why do some stars have spikes and points?
64. Can stars come in non-round shapes too?
65. Is there a constellation called 'The Head of Satan'?
66. What are the core temperatures of some stars?
67. What does the sky look like from the center of a globular cluster?
68. Exactly how do stars form from gas clouds?
69. When the sun dies, will its planetary nebula produce a new star?
70. When did people discover exactly what stars were?
71. Where can I get the image of a star located at a particular sky location?
72. What is the difference between a globular cluster and a galactic cluster?
73. Have astronomers ever seen two stars collide, and what happens?
74. Can multiple supernova happen inside a star cluster?
75. How many stars are there like our sun within the Milky Way?
76. How are the heavy elements created inside a supernova?
77. If a supernova happened 50 light years from Earth, would it outshine the Sun?
78. How can we see individual stars in a globular cluster when they must be fainter than the Sun?
79. How would the constellations change if I traveled to Pluto, a nearby star, or the center of our galaxy?
80. How do stars shine?

Intermediate:

1. Why do planetary nebulae have hourglass shapes?
2. How do astronomers use a spectrum to find out what gases are in a star?
3. What is a quark star?
4. How do you measure the age of stars and the universe?
5. Where can I get a Hertzsprung-Russel diagram?
6. Who invented the stellar classification system 'OBAFGKM'?
7. How do some stars make dust?
8. How does dust and gas get into the sky to make stars?
9. By what process do supernovae become Type I or Type II?
10. What makes different stars age so differently?
11. Why do stars evolve?
12. How much hydrogen does a star need to shine, and does it fade as it gets older?
13. How can a white dwarf have the same mass as the Sun and not 'burn'?
14. What would happen to a planet orbiting a star that has supernovaed?
15. What is a boson star?
16. How are the distances to nebulae determined?
17. If stars come in all colors, why do they all appear white to the eye?
18. Why does the 'iron crisis' occur in pre-supernova stars?
19. How would a star loose enough mass to unbind the orbits of its planets?
20. Do all O-type stars become supernovae?
21. Could you give a table of the number of stars in each magnitude interval to +8 in apparent magnitude?
22. If the Cepheid star method gives you luminosity, how do you then determine distance from this knowledge?
23. What happens when two stars collide?
24. How can you tell a star has starspots when you can't even see the star's surface?
25. What is a neutrino star?
26. What is the best guess for the number of stars in the universe?
27. How do astronomers figure out the ages of stars?
28. What kind of terrestrial atmosphere would make stars look green?
29. If a star were to loose mass, what would happen to the orbits of planets?
30. If iron is the heaviest element created by stars, where did things like uranium and lead come from?
31. Are there any competing theories about how stars form?
32. Globular clusters look so miraculous, why haven't the stars all collided?
33. How can a white dwarf be associated with a star only a few 100 million years old?
34. How in the world is it possible to estimate how old stars are?

Advanced:

1. What exactly happens to a star about to go supernova?
2. How do you compute the angular distance between two stars from their coordinates?
3. What causes pulsating variable stars to pulsate?