Geological Chronicle
Located in the southern hemisphere on the Moon's far side, Scaliger spans 86.4 kilometers across and attaches to the northwest rim of the walled plain Milne. The shared perimeter reshaped Scaliger's outer wall slightly, creating a straightened section along its southeast rim and giving the formation a somewhat polygonal profile.
Formed during the Late Imbrian epoch, Scaliger has not been heavily eroded by subsequent impacts, in contrast to the worn terrain of Milne. Terraces line the inner walls, an outer rampart overlays the floor of Milne, and infrared spectra reveal exposures of pure crystalline plagioclase within the crater.
The interior floor is relatively flat with a rough surface near the inner wall, surrounding a central peak offset slightly to the east. Spectral analysis indicates the central rise fits an olivine-bearing noritic gabbro mineralogy that originated from a depth of 8.4 to 13.3 kilometers.