The Moon - Lunar Orbiter 4

Eastern Limb of the Moon

The Moon
Lunar Orbiter 4 view of the eastern limb of the Moon. The large dark-floored crater towards the left is Mare Humboldtianum, with a diameter of about 270 km. The north pole is at the top left. The large dark feature at the bottom right is Mare Smythii. (Lunar Orbiter 4, frame M-23)

Moon
Moon Geology
Impact Cratering