how large was it ?
The largest was a reflecting telescope with a 49½-inch-diameter (1.26 m) primary mirror and a focal length.
William Herschel
The largest and most famous of Herschel's telescopes was a reflecting telescope with a 49½-inch-diameter (1.26 m) primary mirror and a focal length.
when was uranus first discovered and by who Sir William Herschel discovered it on 13 March 1781. is this a planet ? Yes, Uranus is the seventh planet from the Sun. how is the climate here ? It is the coldest planet in the Solar System. what is its reference in culture ? In astrology, it is the ruling planet of Aquarius. has is it been explored ? Yes, In 1986, NASA's "Voyager 2" interplanetary probe encountered it. how is the atmosphere there ? There is no well-defined solid surface within Uranus's interior, the outermost part of Uranus's gaseous envelope that is accessible to remote sensing. how did it get its name ? he name of Uranus references the ancient Greek deity of the sky Uranus. how is its visibility ? Its mean apparent magnitude is 5.68 with a standard deviation of 0.17, while the extremes are 5.38 and +6.03. what is it composed of ? It consists mainly of molecular hydrogen and helium. what is its internal structure ? It consists of three layers: a rocky (silicate/iron–nickel) core in the centre, an icy mantle in the middle and an outer gaseous hydrogen/helium envelope. who the person you mentioned above who discovered this planet ? Astronomer and composer of music where was he born ? Electorate of Hanover in Germany. name some of his musical work ? Various vocal works including a "Te Deum", psalms, motets and sacred chants along with some catches. how did he die ? He died after a long illness. did he invent any telescope ? Yes, Herschel telescopes. what is  this ? It is his first large telescope.
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William Herschel [SEP] 40ft telescope
The largest and most famous of Herschel's telescopes was a reflecting telescope with a 49½-inch-diameter (1.26 m) primary mirror and a focal length. The 40-foot telescope was, at that time, the largest scientific instrument that had been built. It was hailed as a triumph of "human perseverance and zeal for the sublimest science". In 1785 Herschel approached King George for money to cover the cost of building the 40-foot telescope. He received £4,000. Without royal patronage, the telescope could not have been created. As it was, it took five years, and went over budget. The Herschel home in Slough became a scramble of "labourers and workmen, smiths and carpenters".