Geological Chronicle
Barrow is an old lunar impact crater near the northern limb of the Moon, located between Goldschmidt to the northwest, the irregular formation Meton to the northeast, and W. Bond to the southwest. On the lunar geologic timescale, it dates to the Pre-Nectarian epoch. Described as having a "notably square outline", the outer wall has been heavily eroded by subsequent impacts and reshaped by intruding craters. As a result, the rim now resembles a ring of rounded hills and peaks surrounding the flat interior, with the younger satellite crater Barrow A lying across the southwest rim.
The perimeter varies in elevation and structure. In the northwest, where the wall joins Goldschmidt, the rim achieves its maximum height and extend. At the eastern end of the crater, a narrow gap in the rim joins the floor to the adjacent crater Meton. Along the southern rim, linear troughs are associated with ejecta from the formation of the Imbrium basin, giving this unusual rim region an appearance described as wave-like.
The interior of Barrow was resurfaced by basalt flows, leaving a flat surface marked by many tiny craterlets. Faint traces of ray material from Anaxagoras to the west form streaks across the floor. The crater is named after British mathematician Isaac Barrow. German astronomer Johann Mädler introduced the name into lunar nomenclature during the 19th century, and the International Astronomical Union formally adopted the designation in 1935.