Caroline Herschel was a German born Astronomer and sister and co-worker of William Herschel.
Twelve years older, William moved to England in 1757 and Caroline joined him in 1772, primarily to act as his housekeeper but later as his assistant. She started by grinding the mirrors needed for astronomy and started filling in for her brother when he was away on business, becoming an astronomer in her own right as a result.
Herschel discovered at least 8 comets and produced a catalogue of nebulae for her nephew, John Herschel. In 1828, Herschel was awarded the Royal Astronomical Society's Gold Medal and was given honorary membership of the Royal Astronomical Society in 1835.