William Herschel was using his telescope to separate double stars. He wanted to “use these doubles as a tool to measure stellar parallax.” Before telescopes, astronomers only used their eyes!

Herschel noticed an object between Aurigas, and Castor, which didn’t move across the sky like stars do. Herschel took meticulous notes, and recorded all of his findings. He initially thought it was a comet.

Many Scientists did not agree with the use of the telescope. One scientist (Maskelyne) said, “Telescopes perform incomparably better in the open air than in any room, but then they require very firm stands, such as I never saw yet made.”

After observing it over and over, and Herschel realized it could be a planet. Scientists thought, “Comets dominate