Cannon (crater)
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 Apollo 16 image | |
| Coordinates | 19°54′N 81°24′E / 19.9°N 81.4°E |
|---|---|
| Diameter | 56 km |
| Depth | Unknown |
| Colongitude | 280° at sunrise |
| Eponym | Annie J. Cannon |
Cannon is a lunar impact crater that is located near the east-northeastern limb of the Moon's near side. It lies just to the northwest of the Mare Marginis, and south-southeast of the crater Plutarch. Farther to the east-northeast is Hubble.
This is a worn and eroded formation with an interior floor that has been resurfaced by lava. A small crater overlies the north rim, which forms a notch in the side. Tiny craters also lie across the rim northeast and at the southern edge. The interior is level and nearly featureless, with only a few tiny scattered craterlets to mark the surface. This floor has the same albedo as the surrounding terrain.
The crater is named after American astronomer Annie Jump Cannon,[1] an astronomer who classified 300,000 stellar bodies. The name was adopted by the International Astronomical Union in 1963.[1]
