IWLOP #067 - Werner & Aliacensis
This is a Nectarian age crater that still retains an off-centred peak.
Location: 28.0 S 3.3 E Origin: Impact Size: 70 km (Werner), 80 km (Aliacensis) Rukl: 55, 65 Type: Complex Craters (CC)
Objects: Werner, Aliacensis, Werner D, Tycho
Location: Home
Date: 2021-03-21
Time: 8:48 PM ADT
Equipment: 10" Meade SCT, 4.7 mm eyepiece
Magnification: x530
Seeing: Very Good (4)
Transparency: Very Good (4)
These craters are adjacent to Walther and Regiomontanus.
R1: Werner and Aliacensis both have steep terraced walls and slightly off-centre central peaks. The north wall of Aliacensis appears to have been impacted by Werner's ejecta. Wall not as distinct and some ejecta appears on its floor, almost like a slight depression between the two.
R2: Both Tycho and Werner have sharp-rimmed walls. During the Full Moon phase, Tycho's ejecta is seen splattered over this area (and beyond). Both have a series of terraces on the crater walls.
C1: Werner D appears as bright crater on the north wall of Werner. Werner seems to have one large off-centre peak with two smaller ones. Aliacensis has an off-centre peak near where the change of colour in the floor appears.
