When it was discovered, William Herschel was making a database of all magnitude 8 (too faint to see with the eye – or brighter) stars. During his surveys he noticed an object that moves in front of the star - closer! He first thought it to be a comet, but more observation show it was a planet.
Uranus is the 7th planet from the sun, and has the 3rd biggest mass in the solar system and is blue. Uranus has 27 moons. The Voyager 2 spacecraft discovered 10, 4 were discovered by astronomers in the 18th and 19th century.
I hope you learned something from this T.C.