Simpelius (crater)

lunar crater data
latitude=73.0
N_or_S=S
longitude=15.2
E_or_W=E
diameter=70 km
depth=3.2 km
colong=349
eponym=Hugh Sempill

Simpelius is a lunar impact crater that lies in the southern part of the Moon. It lies to the north-northwest of the somewhat larger Schomberger crater, and east-southeast of the prominent Moretus crater.

The most distinctive aspect of this crater is the asymmetry of the inner wall, with the side being nearly twice as wide at the southern end as it is to the north. As a result the level interior floor is offset to the north of the crater interior. The rim and inner wall are less sharply defined when compared to Schomberger or Moretus, with the features softened and smoothed by impacts. The rim is uneven, with peaks to the north, west, east, and south-southeast, and low sections in between. There are also a number of small crater pits along the inner wall and the interior floor.

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 Simpelius crater.

References