Poinsot (crater)
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| Crater characteristics | |
|---|---|
 Location of Poinsot crater as seen from above the pole. |
|
| Coordinates | 79.5° N, 145.7° W |
| Diameter | 68 km |
| Depth | Unknown |
| Colongitude | 146° at sunrise |
| Eponym | Louis Poinsot |
Poinsot is a worn lunar crater that is located at the northern part of the Moon on the far side. It lies to the south of the Rozhdestvenskiy walled-plain. To the south is the smaller Heymans crater.
This formation has been heavily worn by subsequent impacts, leaving a round-shouldered outer rim that is nearly even with the surrounding terrain and an inner surface that slopes down to the floor without terraces or horizontal features. A number of tiny craterlets lie along the rim edge and inner walls, as well as across the level interior surface. The floor lacks a central peak at the mid-point, but has a small but notable crater lying next to the western inner wall.
[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 Poinsot crater.
| Poinsot | Latitude | Longitude | Diameter |
|---|---|---|---|
| E | 80.2° N | 129.8° W | 25 km |
| K | 77.6° N | 141.3° W | 16 km |
| P | 77.2° N | 149.7° W | 27 km |
[edit] References
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