: a telescope whose principal focusing element is a lens
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Two presentations: Phil Shoemaker discusses Mitchel's role in getting the telescope, and John Briggs describes how the 1845 refractor compared to other telescopes of the era.—Luann Gibbs, The Enquirer, 7 Apr. 2025 There are two basic types of telescope: refractors and reflectors.—Keith Cooper, Space.com, 20 Mar. 2025 Another in 2007 used an off-the-shelf digital detector on a small refractor telescope to deliver remarkably decent photometric measurements, even for third-magnitude stars (which are somewhat fainter than those making up the Big Dipper).—Phil Plait, Scientific American, 26 July 2024 There’s even a broadcast feed for those who can’t climb the narrow steps to the observatory’s 8-inch refractor telescope.—Laura Randall, Los Angeles Times, 16 May 2024 See All Example Sentences for refractor
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