Observe on Lunar Day (after New Moon): 12 or 25
Lunar Day Seen: 13
Date/Time: 11/17/2021 18:45 Local Time
Location: 1425 Snowberry Lane, Broomfield, CO
Seeing: VG
Transparency: 5
Instrument Used: 8" f/6 Newtonian Telescope
Magnification: 203x
Estimated Lunar Epoch: Copernician
Actual Lunar Epoch: Eratosthenian
Reasoning/Description: Sharp, defined rim walls. Deep crater. Little erosion seen.
Sketch (click for larger image)
Sirsalis is the lower of the two craters in this image.
