Geological Chronicle
Schiller is a lunar impact crater located in the southwestern region of the Moon's near side, distinguished by its elongated rim. Its long axis runs northwest–southeast, with the wider girth in the southeastern half and a slight bend whose concave side faces northeast. Schiller is thought to be a fusion of two or more craters, an elongation amplified to observers by its proximity to the lunar limb.
The crater rim is well-defined, featuring a terraced inner wall and a slight outer rampart. Most of the crater floor is flat, most likely due to lava flooding, with bright patches visible under a high sun angle. Across the northwest floor, a double ridge divides the floor in half, while a wide valley connects the southeastern end to a smaller crater.
To the southwest of Schiller lies the Schiller-Zucchius Basin, a Pre-Nectarian peak ring basin known unofficially among lunar observers as the Schiller Annular Plain. Schiller is named for the German astronomer Julius Schiller.