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Tuesday, October 10, 2017

Posidonius

The seeing was a bit unsteady, but I wanted to see what I could obtain shooting video. Here is Posidonius, named for the Greek philosopher, geographer and astronomer, who lived 135 - 51 BCE. This walled plain is 95km in diameter. Adjacent to Posidonius is the 51km crater Chacornac, now filled with darkness. Just to the south we find the oblong appearing le Monnier, a flooded crater 61km in diameter also in darkness. le Monnier is the site of the Luna 21 landing. To the west is part of Mare Serenitatis (Sea of Serenity), which the Dorsa Smirnov runs across as seen here. This image does not do the view through the eyepiece justice!

8:24UT, 10 October, 2017, Tucson, Arizona.
Celestron 20cm (8”) EdgeHD with a Canon 80D operating with eyepiece projection using a 21mm eyepiece. Video processed with AutoStakkert & Registax.

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