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William Herschel's reflecting telescope of 40 ft (12 m) focal length, 1789 (1807).
William Herschel's reflecting telescope of 40 ft (12 m) focal length, 1789 (1807). Built by the German-born English astronomer, William Herschel (1738-1822), in the grounds of his home in Slough, Berkshire, this instrument was the largest in the world, with a 4 ft (1.2 m) mirror. Herschel made observations with this telescope, including the discovery of two new moons of Saturn on the first night he used it, but made more use of a smaller 18 inch/46 cm instrument. From The Edinburgh Encyclopaedia. (Edinburgh, 1807-1829).
Unique Identifier
AR926097
Type
Image
Purpose
Public
Size
3853px × 4533px
Photo Credit
HIP / Art Resource, NY
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Tags
19th century
Astronomy
B&W
B/W
berkshire
Black & White
Black and white
Britain
British
concept
England
Engraving
enormous
Herschel
huge
LARGE
Monochrome
NINETEENTH CENTURY
Optics
Oxford Science Archive
Print Collector1
reflecting telescope
SCAFFOLD
Scaffolding
Science
Scientific Instrument
Sir William
Sir William Herschel
Slough
Technology
Telescope
TGN
WILLIAM
William Herschel