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Cassegrain telescope

Pronunciation: /ˈkasɪgreɪn/

Definition of Cassegrain telescope

noun

  • a reflecting telescope in which light reflected from a convex secondary mirror passes through a hole in the primary mirror.

Origin:

late 19th century: named after N. Cassegrain (1625–1712), the French astronomer who devised it

Cassegrain telescope in other Oxford dictionaries

Definition of Cassegrain telescope in the US English dictionary

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