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Great Paris Exhibition Telescope of 1900 information


Great Paris Exhibition Telescope of 1900
The Great Telescope, installed, from the ocular lens end
Location(s)France Edit this at Wikidata
Coordinates48°52′N 2°17′E / 48.86°N 2.29°E / 48.86; 2.29 Edit this at Wikidata
Telescope styleoptical telescope
destroyed building or structure Edit this on Wikidata
Focal length57 m (187 ft 0 in) Edit this at Wikidata
Great Paris Exhibition Telescope of 1900 is located in France
Great Paris Exhibition Telescope of 1900
Location of Great Paris Exhibition Telescope of 1900
 Great Paris Exhibition Telescope of 1900 Related media on Commons
Comparison of nominal sizes of apertures of the Great Paris Exhibition Telescope of 1900 and some notable optical telescopes

The Great Paris Exhibition Telescope of 1900, with an objective lens of 1.25 m (49 in) in diameter, was the largest refracting telescope ever constructed. It was built as the centerpiece of the Paris Universal Exhibition of 1900. Its construction was instigated in 1892 by François Deloncle (1856–1922), a member of the French Chambre des Députés. Since it was built for exhibit purposes within a large metropolis, and its design made it difficult to aim at astronomical objects, it was not suited for scientific use. When the year-long exposition was over, its builders were unable to sell it. It was ultimately broken up for scrap; the lenses are still stored away at the Paris Observatory.

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Great Paris Exhibition Telescope of 1900

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