Caroline Herschel
When they were in England, Caroline helped her brother in his scientific work. She helped him to discover Uranus with a six-foot telescope. William was credited with the discovery of Uranus. He was knighted because of his discovery, and she was his assistant. She recorded and completed tasks for him. Her calculations and record keeping were always accurate. They saved her brother a lot of time. Caroline often worked on discoveries of her own. She independently discovered the second companion of the Andromeda Galaxy (Messier 110; NGC 205) and another, new, nebula.  She also discovered eight comets in 17861795.