William Herschel needed a housekeeper and so he brought his sister, Caroline, from Germany to Bath.

At the time William was building powerful telescopes to look deeper into space. Caroline spent hours grinding and polishing mirrors BUT whenever he was away she would shift in behind the telescopes and visitors to the observatory took note – even King George III.

William gave Caroline one of his small telescopes to search for comets.

Later when William had new things on his mind, like marriage, Caroline Herschel went ahead to become a prominent astronomer.