Geological Chronicle
Located near the south lunar pole on the far side of the Moon, Schrödinger is an Early Imbrian peak-ring basin spanning 316.39 kilometers in diameter. The structure features a well-defined outer rim with interior terracing and an exterior ejecta blanket extending up to 100 kilometers. Instead of a central peak, an inner ring of rugged mountains rises across the interior at roughly half the diameter of the main perimeter, interrupted by a wide gap in the south.
Subsequent basaltic lava flows resurfaced much of the floor, creating a level plain within the inner mountain ring alongside an area of rougher ground in the southeast. The basin floor is cut by a complex system of rilles and scattered with small impact craterlets. Schrödinger also preserves evidence of lunar volcanism, including explosive eruptions and lava flows associated with the volcanic vent designated Schrödinger G.
Two major linear troughs radiate outward from the basin's perimeter across the lunar highlands. Vallis Schrödinger extends northwest toward the crater Moulton, while Vallis Planck branches toward the north past Fechner. Along the southwestern rim, the smaller crater Ganswindt intrudes into the wall, flanked farther south by Nefed'ev and Amundsen.