Gregorian telescopes

A form of Gregorian telescope — A type of reflecting telescope having two concave mirrors: the primary mirror (a paraboloid) collects the light and brings it to a focus before the secondary mirror (a ellipsoid), where it is reflected back through a hole in the centre of the primary, and thence out the bottom end of the instrument, where it can be viewed with the aid of the eyepiece.

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Meanings

noun
  1. pluralplural of Gregorian telescope
Cite this entry
APA

Gregorian telescopes. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Gregorian%20telescopes

MLA

“Gregorian telescopes.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Gregorian%20telescopes. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Gregorian telescopes,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Gregorian%20telescopes.

Source: Gregorian telescopes on Wiktionary, CC BY-SA 4.0.