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5 Cards in this Set
- Front
- Back
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Telescope that uses mirrors as the primary way to gather light.
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REFLECTOR
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Telescope that uses lenses as the primary way to gather light.
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REFRACTOR
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problems with refractor telescopes
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HEAVY, LENSES REQUIRE SMOOTHING ON 2 SIDES, ABBERATION
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the more important feature: diameter or length?
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DIAMETER
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device allowing telescopes to detect invisible light
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CCD (charged-coupling device)
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