Simplify the following text for a Grade 9 native English-speaking person.
Original: It was discovered from the images taken by Voyager 2 on 9 January 1986 , and was given the temporary designation S\/1986 U 3 .
Simplified: It was found from the images taken by Voyager 2 on 1986-01-09 , and was given the designation S\/1986 U 3 .