Geological Chronicle
Wiener is an impact crater on the Moon's far side, located southwest of the larger crater Campbell and northeast of the heavily worn Kurchatov. Dating to the Nectarian epoch of the lunar geologic timescale, the formation spans 113.39 kilometers across and borders Von Neumann along Campbell's rim, with the smaller crater Pawsey to the north-northwest.
The northwestern half of the crater rim is well-formed, showing inner wall terraces and slumping, with an outward protrusion along the northern side where it borders Pawsey. In contrast, the southern portion is more irregular, featuring a wider, uneven inner wall and a poorly defined edge that overlies about half of satellite crater Wiener K along the south-southeast.
Much of the interior floor is relatively level, marked near the midpoint by a clump of small ridges forming a central peak structure. A small crater lies to the east-northeast of these ridges, while several small craters sit near the southwestern inner wall. Along the outer margins, satellite crater Wiener Q borders the southwestern rim, and the relatively fresh, polygon-shaped Wiener F lies just east of the eastern rim.