cphsastronomy

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Ch 20 -galaxies
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Ch 19 -life and death of stars
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Other suns
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Ch 17 -our dynamic sun
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Ch 16 -cometsmeteorsasteroids
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Ch 15 -the five dwarfs
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Ch 14 -neptune
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Ch 12 -saturn1b
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Ch 13 -uranus
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Ch 11 -jupiter
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Ch 10 -mars
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Ch 9 -venus
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Ch 8 -mercury
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Ch 7 -moon (2)
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