Geological Chronicle
Located near the western extreme of Oceanus Procellarum close to the western lunar limb, Struve is the lava-flooded remains of an impact crater measuring 164.34 kilometers across. Because of its proximity to the limb, the roughly circular outline appears oval due to foreshortening. T. W. Webb described the formation as remarkably dark at full Moon.
The rim of Struve is heavily worn and irregular, rising to a maximum height of 1.7 kilometers as a circular mountain range broken by several gaps that connect to the surrounding mare. Its northern rim intersects the smaller lava-flooded crater Russell across a wide gap, while the southeast rim attaches to the remains of Eddington. Along the western rim, the crater Struve G overlaps the inner wall just south of a breach connecting to Oceanus Procellarum.
On older maps this formation was named Otto Struve. The name now honors three astronomers of the Baltic German Struve family: Friedrich Georg Wilhelm von Struve, Otto Wilhelm von Struve, and Otto Struve. Earlier maps also used Otto Struve A as an alternate designation for both Russell and Eddington.