Engraving of the mirror from Herschels telescope
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Engraving of the mirror from Herschels telescope
Telescope mirror. Engraving of the mirror from a telescope built by the German-British astronomer William Herschel (1738-1822). The upper image is a cross-section of the mirror, showing its concave shape. The lower image shows the mirror bound around its edge by an iron hoop with handles. The mirror was completed in 1795 by Herschel and his sister, Caroline. It was 122 cm (48 inches) wide, 8.9 cm (3.5 inches) thick and weighed 960kg. The mirror was concave so that it would act as a lens and focus light. The telescope was 12.3 metres (40 feet) long. The eyepiece was at the top of this to avoid the loss of light caused by a secondary mirror. The telescope was dismantled in 1839
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Herschel History Of Instrument Mirror Of Telescope Telescope Telescopes
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This print showcases an engraving of the mirror from William Herschel's remarkable telescope. Built by the renowned German-British astronomer and his sister, Caroline, in 1795, this telescope mirror was a true marvel of its time. The upper image reveals a cross-section of the mirror, highlighting its exquisite concave shape that allowed it to function as a lens and focus light. In the lower image, we witness the mirror securely bound around its edge by an iron hoop with handles. Impressively sized at 122 cm (48 inches) wide and weighing a staggering 960kg, this magnificent piece of equipment measured 8.9 cm (3.5 inches) thick. Accompanied by a telescope measuring an astounding 12.3 meters (40 feet) in length, Herschel ingeniously positioned the eyepiece at the top to prevent any loss of light caused by secondary mirrors. Steeped in history and astronomical significance, this engraving offers us a glimpse into one of Herschel's most significant contributions to science during his lifetime. Although dismantled in 1839, this extraordinary instrument remains etched in our collective memory as a testament to human curiosity and ingenuity. Science Photo Library presents this awe-inspiring print for all astronomy enthusiasts seeking to delve into the rich history behind telescopes while appreciating their instrumental role in unraveling celestial mysteries throughout centuries past.
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