Henderson is a crater on the far side of the Moon. It is located to the east of the huge walled plain Mendeleev. This is a worn crater with a shallow rim. No significant craters overlie the rim or interior, but a smaller, worn crater is attached to the southern outer rim. A ridge of material runs from the northwest rim to the midpoint of the floor. Henderson lies within the eroded remains of a larger and older crater-like feature.
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Henderson.