Observe on Lunar Day (after New Moon): 6 or 19
Lunar Day Seen: 6
Date/Time: 1/8/2022 21:27 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 Lumar Epoch: Imbrian
Reasoning/Description: This is a very subtyle feature. 3 hours ago this part of the moon was dark. It is now right at the terminator line. Used Julius Caesar crater to identify exactly where it is. Very subtle yet can see it cut through the scattered crater rims poking above the surrounding area and then a bit of it that goes by another rim/mountain to the north and onto the lava floor of Mare Tranquilltatis. This was a very cool part of it. This is a lava delivery feature which implies to me Late Imbrian epic. On a lunar map, can see it starts to the west in Mare Vaporum that is now beyond the terminator line. The gaps that are easily seen in the tops of the random crater rims in its path indicate maybe a large, lava tube that collapsed and sunk to create these gaps in the rims. A few minutes later, this part of the moon started to shimmer because of deteriotating seeing in the west and parts I could see easily earlier are now not seen.
Sketch (click for larger image)
