Guillaume (crater)
Clementine mosaic
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| Coordinates | 45°24′N 173°24′W / 45.4°N 173.4°WCoordinates: 45°24′N 173°24′W / 45.4°N 173.4°W |
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| Diameter | 57 km |
| Depth | Unknown |
| Colongitude | 174° at sunrise |
| Eponym | Charles É. Guillaume |
Guillaume is an old lunar crater on the Moon's northern hemisphere, and is located on the far side relative to the Earth. It lies just to the southeast of the slightly larger crater Perkin. This is a worn and eroded formation, with features that have been softened and rounded over time. A cluster of small craters covers most of the northeastern rim. Several small craterlets lie along the edge to the south and west. The bowl-like interior is nearly featureless, with only a few small craterlets to mark the surface.
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Guillaume.
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