Onderon (Earth-2042)

Onderon is a temperate world within the Core Worlds. With a population of around ten billion, Onderon was one of the most populated planets in the Galactic Republic prior to the Clone Wars. Despite being dramatically reduced during the Separatist invasion near the end of 20 BBY and the Clone Wars, due to both casualties and a major evacuation effort, the population had again risen to several billion by the end of 18 BBY. When Supreme Chancellor Sheev Palpatine transformed the Republic into the Galactic Empire and declared himself Emperor, the planet was taken over by the Imperials. This led to the formation of the Partisans led by revolutionist Saw Gerrera.

Source

 * https://www.halopedia.org/Earth
 * https://starwars.fandom.com/wiki/Onderon