English dictionary
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English noun: Gregorian telescope | |||
| 1. | Gregorian telescope (artifact) 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 | ||
| Synonyms | Cassegrainian telescope | ||
| Broader (hypernym) | reflecting telescope, reflector | ||
Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
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Web design: Orcapia v/Per Bang. English edition: .
2024 onlineordbog.dk