Celes IV, also written as Celes Four, was a terrestrial astronomical object that was home to a Separatist fortress during the Clone Wars. A battle was fought there between the Confederacy of Independent Systems and forces of the Galactic Republic, which included Altadan Igar and were lead by a Jedi. The forces of the Republic won and took the fortress, but the death toll was immense. Igar later mentioned the events on Celes IV to Jedi Knight Luke Skywalker on the forest moon of Endor shortly before the Battle of Endor, in 4 ABY.