I used a 9.25-inch telescope and a ZWO ASI224MC astrophotography camera to take this image. The very bright crater at the bottom is called Aristarchus. It is about 40 km in diameter and 3.7 km deep. The river-like structure that runs from the right of Aristarchus crater then veers to the right is Schroter's Valley. It is 185 km. long and 1 km. deep. It is believed to be volcanic in origin and is the largest sinuous valley (or rille) on the moon.