Lambert (lunar crater)

lunar crater data


caption=Lambert from Apollo 15. "NASA photo".
latitude=25.8
N_or_S=N
longitude=21.0
E_or_W=W
diameter=30 km
depth=2.7 km
colong=21
eponym=Johann H. Lambert

Lambert is a lunar impact crater on the southern half of the Mare Imbrium basin. It lies to the east and somewhat south of the slightly larger Timocharis crater. To the south is the smaller Pytheas crater, and some distance to the west-southwest is the Euler crater.

The crater is relatively easy to locate due to its isolated position on the mare. It has an outer , d inner walls, and a rough interior that has a comparable albedo to its surroundings. Instead of a central peak, a small craterler lies at the mid-point of the interior.

Just to the south of the Lambert crater ramparts is the lava-covered rim of a crater that is almost completely covered by the mare. The diameter of this ghost-crater is slightly larger than Lambert, but it is difficult to spot except when the sun is at a very low angle. The feature is designated 'Lambert R'.

atellite 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 Lambert crater.

References

External links

* [http://www.lpi.usra.edu/resources/mapcatalog/LTO/lto40a3_1/ LTO-40A3 Lambert] — L&PI topographic map of crater and vicinity.