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5 Cards in this Set

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