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Gregorian telescope   /grəgˈɔriən tˈɛləskˌoʊp/   Listen
Gregorian telescope

noun
1.
A reflecting telescope that has a paraboloidal primary mirror and a hyperboloidal secondary mirror; light is brought to a focus through an aperture in the center of the primary mirror.  Synonym: Cassegrainian telescope.






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Words linked to "Gregorian telescope" :   reflector, reflecting telescope



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