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#newtonian_telescope

Newtonian telescope

Type of reflecting telescope

The Newtonian telescope, also called the Newtonian reflector or just a Newtonian, is a type of reflecting telescope invented by the English scientist Sir Isaac Newton, using a concave primary mirror and a flat diagonal secondary mirror. Newton's first reflecting telescope was completed in 1668 and is the earliest known functional reflecting telescope. The Newtonian telescope's simple design has made it very popular with amateur telescope makers.

Mon 18th

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Newtonian telescope Schmidt–Newtonian telescope Reflecting telescope Dobsonian telescope History of the telescope List of telescope types Newtonian Coma (optics) Amateur telescope making Isaac Newton
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