IWLOP #107 - Klaproth & Casatus

Double crater located near the southern edge of the Moon.

Location: 69.7 S 26.0 W    Origin: Impact     Size: 119 km (Klaproth), 103 km (Casatus)   Rukl: 72     Type: Simple Crater (CS)

Objects: Klaproth, Casatus, Casatus C and J
Others Identified: Casatus A, Klaproth A, G and H, crater H

Location: Home
Date: 2019-04-17
Time: 10:30 PM ADT
Equipment: 10” Meade SCT
Eyepiece: Meade Super Plössl 9.7mm
Magnification: x258
Seeing: Very Good (2)
Transparency: Excellent (1)

Note: This was a surprise discovery. Looks a bit like Sirsalis/Sirsalis A. 

R1: Klaproth is larger and has a relatively smooth floor; much of its southern rim is impacted by Casatus and by craters G and H. Klaproth's Crater H in the east, and G and H in the west are shallow and no high walls seen. 

Casatus had 2 craters (C and J) that were easily seen. Could also see Crater A on the wall or very close to it, and Crater J. Casatus appeared to have a small dorsa or other structure in its western floor.