On 11th January 1787, British astronomer William Herschel discovered two moons of the planet Uranus, Titania and Oberon. Herschel is also known for the discovery of Enceladus, a moon of planet Saturn.
Incidentally, Herschel discovered the planet Uranus though he originally thought it was a star. After consultation with other astronomers, he arrived at the conclusion that it was a planet beyond the orbit of Saturn and named it Georgian star.
