Rukl 68 - Janssen
Date/Place2020-04-10 at Rozzano (MI)
ScopeVixen SP102M
CameraImaging Source DMK41
IntegrationStack of 700 frames out of 1000.
Processing with PIPP, Autostakkert and PixInsight
CommentJanssen is the largest crater visible in the image (off centre toward the bottom left corner), not immediately visible because its walls were partly destroyed by later craters. It has a diameter of 191km x 115km and it dates back to the Pre-Nectarian period. Inside the crater it is possible to see the Rimae Janssen, a large rill 140km long and 3km wide.