Clerke Crater

The interior wall of the Clerke crater has many distinct flows of granular material which narrow as they reach towards the floor of the crater. The source material originates from the crater rim. The debris appear higher in reflectance compared to the rest of the crater wall, likely due to differences in the length of time they have been exposed to the space environment and perhaps grain size of the material. The debris flows may be younger than the crater floor and walls if the flow was instigated by seismic shaking or a nearby impact crater. The flow may contain more boulders, which may cause the higher reflectance. The crater is 7 km in diameter located at 21.7°N, 29.8°E near the Taurus Littrow Valley where Apollo 17 landed on 11 December 1972 and is named after Agnes Mary Clerke, an English astronomer.