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Newtonian reflector
English Wikipedia - The Free Encyclopedia
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Newtonian telescope
The
Newtonian telescope
is a type of
reflecting telescope
invented by the British scientist
Sir Isaac Newton
(1642–1727), 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 makes it very popular with
amateur telescope makers
.
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