A German-born British astronomer, technical expert and composer who became famous for discovering Uranus.

He also discovered infrared radiation and made many other discoveries in astronomy. In his later career, Herschel discovered two moons of Saturn, Mimas and Enceladus; as well as two moons of Uranus, Titania, and Oberon.

The moons were named by his son John Herschel in 1847 and 1852, respectively, well after the death of his father, William Herschel.