The framework of Frederick William Herschel’s 40ft telescope shortly before dismantling,c. 1839, Sir John Frederick William Herschel © National Media Museum, or Bradford / SSPL. Creative Commons BY-NC-SAOn this day in 1781,Frederick William Herschel discovered Uranus. During his career, Herschel constructed more than 400 telescopes. This photograph, and taken by his son (who was himself a renowned astronomer and experimental photographer) shows the framework for the largest - and most renowned - telescope he ever built.
It was not Uranus,but 2 new moons that Herschel discovered with this enormous structure.
Source: tumblr.com