IWLOP #036 – Lacus Mortis & Bürg
Lacus Mortis, the "Lake of Death," is an ancient crater flooded by lava and is almost hexagonal in shape.
Location: 45.0 N 27.0 E Origin: Volcanic and Impact Size: Dorse 150 km, Mons 40 km Rukl: 14 Type: Lacus, Complex Crater (CC)
Objects: Lacus Mortis, Bürg, Plana, Mason, Lacus Somniorum, Rimae Bürg
Others Identified: Bürg A, Plana C, E, F, G
Location: Home
Date: 2020-05-25
Time: 10:15 PM ADT
Equipment: 6" Dobsonian
Eyepiece: Meade Super Plössl 9.7mm + x2 Barlow
Magnification: x250
Seeing: Very Good (4)
Transparency: Good (3)
R1: Lacus Mortis is west and adjacent to Atlas and Hercules. Looked to be an old crater perhaps(?).
R2: Bürg had steep sides that created long shadows over the central peaks.
R3: Plana had as deep thick east wall but the west wall seemed disintegrated. Plana joined to Mason. Mason's north wall was virtually non-existent; another mountain on its E-SE wall. Plana had a central peak; Mason did not. Both seemed to form the southern border of Lacus Mortis.
C1: Rimae Burg began where shadows showed on the west side of Lacus Mortis and headed NE above Bürg.
