Merrill (crater)
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| Crater characteristics | |
| Coordinates | 75.2° N, 116.3° W |
|---|---|
| Diameter | 57 km |
| Depth | Unknown |
| Colongitude | 119° at sunrise |
| Eponym | Paul W. Merrill |
Merrill is a lunar impact crater. It is located in the high northern latitudes, on the far side from the Earth. Less than a crater diameter to the south-southwest of Merrill is the similar Niepce crater, and to the east along the northern limb is the larger Brianchon crater.
The outer rim of Merrill is worn and the features are softened, but only a few impact craters lie along the edge and inner side. The inner walls are uneven slopes down to the relatively flat interior floor. This surface is marked by several small craterlets, including a pair near the mid-point. The satellite craters 'Merrill X' and 'Merrill Y' form a merged, dual-lobed feature that is attached to the northern outer rim of Merrill.
[edit] Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Merrill crater.
| Merrill | Latitude | Longitude | Diameter |
|---|---|---|---|
| X | 77.0° N | 119.2° W | 34 km |
| Y | 76.8° N | 115.4° W | 35 km |
[edit] References
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- Blue, Jennifer (July 25, 2007). Gazetteer of Planetary Nomenclature. USGS. Retrieved on 2007-08-05.
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