Attached to the northern rim is the lesser crater Lehmann, and to the northeast is the even smaller Drebbel.

Schickard has a worn rim that is overlain in several locations by smaller impact craters.

The floor of Schickard has been partially flooded by lava, leaving only the southwest portion uncovered and rough-textured.

Schickard's floor is marked with a triangular band of lighter-albedo material, leaving relatively darker patches in the north and southeast.

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Schickard.