As a consequence, even though it is roughly circular in outline, it appears oval due to foreshortening.
Attached to the southeast rim is the remains of another lava-flooded formation, Eddington.
The rim of Struve is heavily worn and irregular, with several gaps connecting to the surrounding mare.
It resembles little more than a circular mountain range, climbing to a maximum height of 1.7 km.
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Struve.