Geological Chronicle
Maginus is an ancient impact crater in the southern highlands, located southeast of the prominent crater Tycho. Spanning 155.58 kilometers across, the formation measures almost three quarters the diameter of Clavius, which lies to the southwest. Just north of Maginus lies the smaller crater Proctor, and Deluc is situated to the southeast.
The rim of Maginus is heavily eroded with impact-formed incisions and multiple overlapping craters across its eastern side. T. W. Webb called the formation the ruin of a vast complex ring. Little remains of the original features that formed the rim, the crater no longer possesses an outer rampart, and the worn crater Maginus C breaks through the wall in the southeast.
The floor of Maginus is relatively flat, with a pair of low central peaks. The feature is named for the Italian astronomer and mathematician Giovanni Antonio Magini.