Geological Chronicle
Phillips is an impact crater measuring 104.21 kilometers across near the Moon's east-southeastern limb in the Humboldt quadrangle. Named after British geologist and astronomer John Phillips, the crater is eroded in places. The larger walled plain Humboldt lies across its eastern rim, where an outer rampart covers nearly half the interior floor.
The surviving rim is not quite circular, forming an outward-projecting bend at its northern end where the inner wall is diminished. A small circular crater lies along the western rim. The interior floor is irregular in places, featuring a central ridge near the midpoint, while the crater Legendre lies to the southwest.