![SIR FREDERICK WILLIAM HERSCHEL German-English astronomer's home, Herschel House, at Slough: view from the street Date: 1738 - 1822 Stock Photo - Alamy SIR FREDERICK WILLIAM HERSCHEL German-English astronomer's home, Herschel House, at Slough: view from the street Date: 1738 - 1822 Stock Photo - Alamy](https://c8.alamy.com/comp/G39N52/sir-frederick-william-herschel-german-english-astronomers-home-herschel-G39N52.jpg)
SIR FREDERICK WILLIAM HERSCHEL German-English astronomer's home, Herschel House, at Slough: view from the street Date: 1738 - 1822 Stock Photo - Alamy
![Sir WIlliam Herschel's telescope or the Great Forty-Foot reflecting telescope built between 1785 and 1789 at Observatory House in Slough, England. Copperplate engraving by Wilson Lowry after a drawing by J. Farey Sir WIlliam Herschel's telescope or the Great Forty-Foot reflecting telescope built between 1785 and 1789 at Observatory House in Slough, England. Copperplate engraving by Wilson Lowry after a drawing by J. Farey](https://c8.alamy.com/zooms/6/563896243b544939a79d59728f3dde3a/2a7bx77.jpg)
Sir WIlliam Herschel's telescope or the Great Forty-Foot reflecting telescope built between 1785 and 1789 at Observatory House in Slough, England. Copperplate engraving by Wilson Lowry after a drawing by J. Farey
![William Herschel Telescope Slough Herschel Space Observatory - William Herschel Telescope PNG Image | Transparent PNG Free Download on SeekPNG William Herschel Telescope Slough Herschel Space Observatory - William Herschel Telescope PNG Image | Transparent PNG Free Download on SeekPNG](https://www.seekpng.com/png/detail/960-9605371_william-herschel-telescope-slough-herschel-space-observatory-william.png)
William Herschel Telescope Slough Herschel Space Observatory - William Herschel Telescope PNG Image | Transparent PNG Free Download on SeekPNG
![Sir William Herschel Great 40 foot telescope reflecting telescopes 1785 1789 Observatory House Slough England primary mirror Stock Photo - Alamy Sir William Herschel Great 40 foot telescope reflecting telescopes 1785 1789 Observatory House Slough England primary mirror Stock Photo - Alamy](https://c8.alamy.com/comp/C8NAJN/sir-william-herschel-great-40-foot-telescope-reflecting-telescopes-C8NAJN.jpg)
Sir William Herschel Great 40 foot telescope reflecting telescopes 1785 1789 Observatory House Slough England primary mirror Stock Photo - Alamy
![William Herschel telescope. Old Observatory. Tartu. Estonia, Stock Photo, Picture And Rights Managed Image. Pic. C41-3180799 | agefotostock William Herschel telescope. Old Observatory. Tartu. Estonia, Stock Photo, Picture And Rights Managed Image. Pic. C41-3180799 | agefotostock](https://t1.thpservices.com/previewimage/gallil/8789e12c04696e17a5a90efc2fca0446/c41-3180799.jpg)
William Herschel telescope. Old Observatory. Tartu. Estonia, Stock Photo, Picture And Rights Managed Image. Pic. C41-3180799 | agefotostock
![A view of Observatory House in Slough, Berkshire, on the site where astronomer William Herschel once lived A view of Observatory House in Slough, Berkshire, on the site where astronomer William Herschel once lived](http://www.visitoruk.com/images/franchises/Slough/gallery/largegallery_7062.jpg)
A view of Observatory House in Slough, Berkshire, on the site where astronomer William Herschel once lived
![William Herschel's 40 foot telescope, also known as the Great Forty Foot telescope, was a reflecting telescope constructed between 1785 and 1789 at Observatory House in Slough, England. It used a 47 William Herschel's 40 foot telescope, also known as the Great Forty Foot telescope, was a reflecting telescope constructed between 1785 and 1789 at Observatory House in Slough, England. It used a 47](https://c8.alamy.com/comp/T964MB/william-herschels-40-foot-telescope-also-known-as-the-great-forty-foot-telescope-was-a-reflecting-telescope-constructed-between-1785-and-1789-at-observatory-house-in-slough-england-it-used-a-47-inch-diameter-primary-mirror-with-a-1200-cm-focal-length-it-was-the-largest-telescope-in-the-world-for-50-years-it-may-have-been-used-to-discover-enceladus-and-mimas-the-6th-and-7th-moons-of-saturn-it-was-dismantled-in-1840-today-the-original-mirror-and-a-10-foot-section-of-the-tube-remain-T964MB.jpg)