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The top documents tagged [newtonian reflector]
WHY TRACK NEAR EARTH OBJECTS? Safety of Planet Future exploitation of resources ◦ Mining of asteroids ◦ Water from comets
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COMETS AND THE NEAR EARTH OBJECT PROGRAM AT HOBBS OBSERVATORY
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The earliest recorded working telescopes were the refracting telescopes that appeared in the Netherlands in 1608. Their development is credited to three
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Optical Telescopes. Types of Optical Telescopes Refractor Telescopes
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The Telescope
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