Geological Chronicle
Vertregt is the ancient remnant of a large lunar impact crater situated on the far side of the Moon, to the north of the walled plain Van de Graaff. Spanning 172.76 kilometers across, the degraded formation lies with the prominent crater Aitken across its northeast rim and Zwicky attached to its northwestern rim.
Vertregt has been heavily eroded and reshaped by subsequent events, leaving only a few segments of the outer rim still visible. Its northwestern section is the most intact portion, though small craterlets mark the arcing ridge. The interior consists of rugged ridges, a wide rift leading from the southern crater floor toward Van de Graaff, and the prominent crater pair Vertregt L and Vertregt K in the southeast.
Prior to receiving its formal name, the crater was known as Crater 369. The International Astronomical Union officially named Vertregt in 1979 after Dutch chemist Marinus Vertregt.