Laurent Cassegrain
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Reflecting telescope
Objective (optics)
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John Michell
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Bonaventura Cavalieri
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John Dobson (amateur astronomer)
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1996 in science
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1998 in science
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1999 in science
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Index of optics articles
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Early life of Isaac Newton
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Gran Telescopio Canarias
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Rotating furnace
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Refracting telescope
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Optical telescope
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Angular resolution
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Stephen Hopkins (politician)
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Richmond Hill, Ontario
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James Gregory (mathematician)
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List of largest optical reflecting telescopes
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Active optics
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History of the telescope
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Lick Observatory
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Parabolic antenna
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Caroline Herschel
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List of telescope types
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Ritchey–Chrétien telescope
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George Willis Ritchey
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Parabolic reflector
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Patrick Moore
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Orion Nebula
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Monmouth College
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Reflector
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Astrophotography
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Daguerreotype
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Hermann Oberth
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Lowell Observatory
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List of astronomers
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List of inventors
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Timeline of historic inventions
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Mikhail Lomonosov
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Timeline of telescopes, observatories, and observing technology
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Timeline of astronomical maps, catalogs, and surveys
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Timeline of Solar System astronomy
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Chromatic aberration
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South West England
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Astronomy
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3753 Cruithne
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John Herschel
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Cassegrain antenna
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Hubble Space Telescope
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Reflective telescope
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Reflecting telescopes
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Reflector telescope
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