Centauri

"It's a tidally locked, barren rock. Despite that, this small thing is impossibly important to our defense"
-Aaliyah Al-Abadi
Centauri is a planet that orbits around a trinary star system consisting the stars Alpha Centauri-A, Alpha Centauri-B, and Proxima Centauri. It is home to Earth's Solgate Outpost, the gateway between the Terra Territories and the wider Mastaar Galaxy. It is used as a first line of defense to the Sol system, and as a forward base for travel to the rest of the colonies. 
The outpost itself is roughtly the size of a small city, and boasts a population of about 100 thousand people. The town is designed to show off the splendor of Earth and humanity. Governmentally, the planet is an autonomous governorship within the Opportunity Colonies, one of Earth's three colony groups.