gregorian telescope
English Thesaurus
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 (noun.artifact)
| hypernym | : | reflecting telescope, reflector, |
| definition | : | optical telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece (noun.artifact) |
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