Dayark was a temperate moon that orbited the gas giant Nepe in the Episol system. In 8 ABY, it served as the capital of the Kathol Republic. Dayark always kept the same face towards Nepe, so only the sunward side of the moon was habitable. Day on Dayark occurred when the moon passed out of the shadow of Nepe, and night fell once it fell back into the gas giant's shadow. The moon's orbit was close to the planet, inside the fringes of Nepe's atmosphere. As a result, Dayark's skies were constantly cloudy and a light rain fell almost continuously. The moon's capital city was Rytal Prime.