Aria is a lush terrestrial planet with a habitable moon known as Monte. Aria has a prograde spin and an axial tilt of 40 degrees. Aria has a mass of 1.50 Earth masses, a radius of 1.25 Earth radii, a gravity of 0.96 Earth gravity's, and a density of 0.68 Earth densities Meanwhile, three sentient species inhabit Aria and have established multiple countries on the planet.