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1. What is the difference between a visual binary and a spectroscopic binary?
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2. Why are visual binaries likely to be nearby stars?
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3. When could an astrometric binary become a visual binary?
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4. What is the difference between a single-line and double-line spectroscopic binary?
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5. Which of Kepler's laws can be used to determine the mass of a binary system?
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6. What kind of binary is particularly well suited to determining stellar radii?
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7. Around what do the stars in a binary system revolve?
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8. Why can we often get away with using Kepler's third law in the Solar System without correcting
for the center of mass, but usually cannot do so for binary stars?
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9. What is the difference between the parallax effect and the wobble in motion on the celestial
sphere for the visible star in an astrometric binary?
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10. On average, if we triple the mass of a main sequence star, by how much does the luminosity increase?
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11. What is the difference between an eclipsing binary and an accreting binary?
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12. What are the primary differences between globular clusters and open clusters?
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13. Which kind of cluster, open or globular, typically contains the oldest stars?
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14. Why does accretion in an accreting binary often occur through an accretion ring?
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15. What is the difference between a nova and a type 1A supernova? How are they similar?
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16. What is the difference between a nova and an X-ray burster?
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17. What are the primary differences between Pop I and Pop II?
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18. What are "blue stragglers"?
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19. How does an HR diagram for a typical globular cluster compare with the one for stars near the Sun?
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20. How does an HR diagram for an open cluster compare with the one for stars near the Sun?
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21. What is the "turnoff point" for a globular cluster. Why is it important?
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22. What kind of stars are the most luminous in open clusters? What about in globular clusters?
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