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1 | | Describe the method of distance measurement by triangulation. |
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2 | | How do astronomers triangulate a star’s distance? |
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3 | | How is the parsec defined? How big is a parsec compared with a light-year? |
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4 | | How do astronomers measure a star’s temperature? |
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5 | | Why do stars have dark lines in their spectra? |
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6 | | What are the stellar spectral classes? Which are hot and which cool? |
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7 | | What distinguishes the spectral classes of stars? |
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8 | | What is a binary star? |
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9 | | How do visual and spectroscopic binaries differ? |
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10 | | Why are binary stars useful to astronomers? |
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11 | | What is an eclipsing binary? What can be learned from eclipsing binaries? |
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12 | | What is the H-R diagram? What are its axes? |
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13 | | What is the main sequence? |
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14 | | How do we know that giant stars are big and dwarfs small? |
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15 | | How does mass vary along the main sequence? |
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16 | | What is the mass-luminosity relation? |
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17 | | What is a variable star? |
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18 | | What is meant by the period of a variable star? |
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19 | | Where in the H-R diagram are variable stars found? |
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