Millikan (crater)
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| Crater characteristics | |
| Coordinates | 46.8° N, 121.5° E |
|---|---|
| Diameter | 98 km |
| Depth | Unknown |
| Colongitude | 240° at sunrise |
| Eponym | Robert A. Millikan |
Millikan is a lunar impact crater in the northern hemisphere of the Moon's far side. It is located to the north of the H. G. Wells crater, and to the southwest of Von Békésy crater.
The rim edge of Millikan crater is roughly circular and well-defined, but with some irregularities. There are some small outward bulges along the sough and eash where the edge has slumped inward somewhat. The inner walls lacks a terrace structure that is seen, for example, in the smaller Cantor crater to the south. The interior floor of Millikan is relatively level, and there is a small, bowl-shaped crater to the north of the mid-point. Offset to the west of the middle is a low central peak. The floor is also marked by a number of tiny craterlets.
[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 Millikan crater.
| Millikan | Latitude | Longitude | Diameter |
|---|---|---|---|
| B | 49.8° N | 123.5° E | 21 km |
| J | 45.8° N | 124.6° E | 36 km |
| Q | 43.9° N | 118.6° E | 33 km |
| R | 46.0° N | 117.7° E | 49 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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- McDowell, Jonathan (July 15, 2007). Lunar Nomenclature. Jonathan's Space Report. Retrieved on 2007-10-24.
- Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by The Working Group of Commission 17 of the IAU". Space Science Reviews 12: 136.
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