Discovery of Titania and Oberon

Date: January 11, 1787 • Location: London, United Kingdom

William Herschel discovers Titania and Oberon, two moons of Uranus.

Frederick William Herschel, generally known as William Herschel, was a German–British astronomer and composer. He frequently collaborated with his younger sister and fellow astronomer Caroline Herschel. Born in the Electorate of Hanover, he followed his father into the military band of Hanover, before emigrating to Britain in 1757 at the age of 19.