M 81 82 @ Ching Jing

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Details :
FSQ 106ED + reducer , ST2000XM L 2min X 3, 3min X2 (-10C) , RGB 2 min X 1 (2X2 binning) , no autoguide .
Details :
FSQ 106ED + reducer , ST2000XM L 2min X 3, 3min X2 (-10C) , RGB 2 min X 1 (2X2 binning) , no autoguide .