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Mars January 13 2023


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 Here's a sketch from Friday 13th. The seeing was steady but the transparency was not so good and deteriorated rapidly. As on most occasions I used my 100mm refractor with binoviewer, a 2X barlow, and paired 18mm Ultima eyepieces.  The view is image reversed due to the use of a diagonal, with north top. Also attached alongside the finished drawing is my rough eyepiece sketch.


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