Darksaber
Sunlight streaming obliquely across the lunar landscape from bottom left reveals the 110 km linear feature known as the Straight Wall, the most prominent example of a fault on the moon. In combination with some irregular mountains at its upper (southern) extremity, the Straight Wall mimics a graceful sword. Note also the many "wrinkle ridges" in the plain to the right of the fault. The smallest visible craterlets are under 2 km in diameter. This image is a cropped detail from a shot taken through a 10 mm eyepiece on a 12" Dobsonian telescope with a hand-held cell phone, April 23, 2018.