is a lunar impact crater
that is located on the Moon
's far side
, to the northwest of the Montes Cordillera
. It lies to the north of the Grachev crater
, in the outer skirt of ejecta
surrounding the Mare Orientale
impact basin. This is a circular crater with a rim that has only been lightly eroded by subsequent impacts. Within the interior floor is a central ridge formation.
The Catena Leuschner is a crater chain formation that begins at the northern outer rim of Leuschner and runs to the northwest toward Kolhörster crater. This feature is radial to the Mare Orientale impact, and was likely formed by larger chunks of ejecta during the formation of that feature.
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 Leuschner crater.