Newtonian telescope


: a reflecting telescope including a spherical or paraboloidal primary mirror and a flat reflecting surface (as of a mirror or prism) set at 45 degrees to the optical axis to reflect the light to a focus at the side of the telescope tube

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Dictionary Entries Near Newtonian telescope

Cite this Entry

“Newtonian telescope.” Dictionary, Merriam-Webster, Accessed 20 May. 2024.

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