Observe on Lunar Day (after New Moon): 4 or 17
Lunar Day Seen: 17
Date/Time: 12/21/2021 21:28 Local Time
Location: 1425 Snowberry Lane, Broomfield, CO
Seeing: G
Transparency: 4
Instrument Used: 8" f/6 Newtonian Telescope
Magnification: 203x
Estimated Lunar Epoch: Late Imbrian
Actual Lunar Epoch: Upper Imbrian
Reasoning/Description: Thr Rimae has a nice, long low profile as shown by the shadow. Almost the width of Atlas. Right across the center of the crater, left to right in eyepiece. Shadow shows its low profile and jaggedness nicely. Very nice view of it.
Sketch (click for larger image)
