Battle of the Atoan tar-pit planet (Earth-2042)

In 19 BBY, a battle took place on the Atoan tar-pit planet, in the Ghost Nebula, between forces of the Galactic Empire led by Darth Vader, and Atoan defenders.

Source

 * https://starwars.fandom.com/wiki/Battle_of_the_Atoan_tar-pit_planet