Vlacq (crater)

lunar crater data
latitude=53.3
N_or_S=S
longitude=38.8
E_or_W=E
diameter=89 km
depth=3.0 km
colong=323
eponym=Adriaan Vlacq

Vlacq is a prominent lunar impact crater that is located in the southeastern part of the Moon, and appears foreshortened when viewed from the Earth. This crater is adjacent to the northeastern rim of the larger Hommel crater, and to the northwest rim of Rosenberger crater.

This crater has become eroded, but not to the degree of the larger neighboring craters. The satellite crater 'Vlacq G' is intruding into the southern rim of Vlacq, and is overlaid in turn along the southwest rim by the sharp-rimmed 'Vlacq B'. The satellite crater 'Vlacq C' is attached to the northeastern exterior rim of Vlacq.

The interior floor of Vlacq crater has been resurfaced by lava, leaving a nearly level base. The southwest half of the floor, however, is overlaid by "ejecta" from nearby impacts. In the mid-point of the floor is a rounded massif that is about 15 kilometers in length, being long along the northwest direction. The floor contains a number of tiny craterlets as well as several ghostly crater remnants in the western half. The most notable of these is a circular depression to the west of the central peak.

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 Vlacq crater.

References