An English astronomer, he became world renowned for the discovery of the planet Uranus. He was noted for his recognition of double stars. Using the technology of the late 18th century, he constructed the greatest reflecting telescopes of his time, and with them cataloged and studied the nebulae and galaxies as had never been done before. For his accomplishments, he was knighted by the Royalty. His name was Sir William Herschel, and he died this day, Aug. 25, 1822. Commenting on the grandeur of the heavens, Sir William Herschel stated: "The undevout astronomer must be mad."