Watchman

Mass Effect 2
Perched on the outer edge of Iera's small solar system, Watchman is a mid-sized rock and ice planet that has picked up a dozen moon-sized objects. Its nitrogen-oxygen atmosphere is too thin to support life, with solid ice covering its calcium-heavy rocky core. Footprints of the first surveying teams to come to the planet can still be seen on its practically airless surface. The planet, devoid of valuable resources, has seen few visitors since.

Mass Effect 3
Perched on the outer edge of Iera's small solar system, Watchman is a mid-sized rock and ice planet that has picked up a dozen moon-sized objects. Its nitrogen-oxygen atmosphere is too thin to support life, with solid ice covering its calcium-heavy rocky core. Footprints of Watchman's first surveyors can still be seen on its practically airless surface. The planet, devoid of valuable resources, has seen few visitors since.