Keplerian telescope

noun

An improvement on the Galilean telescope, having a convex lens as the eyepiece instead of Galileo's concave one.

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Meanings

nounKeplerian telescope (plural Keplerian telescopes)

plural Keplerian telescopes

  1. astronomyAn improvement on the Galilean telescope, having a convex lens as the eyepiece instead of Galileo's concave one.

Origin

Invented by Johannes Kepler in 1611.

Full word history & related roots →
Cite this entry
APA

Keplerian telescope. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Keplerian%20telescope

MLA

“Keplerian telescope.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Keplerian%20telescope. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Keplerian telescope,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Keplerian%20telescope.

Source: Keplerian telescope on Wiktionary, CC BY-SA 4.0.