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M8 + M20 Area: example for bortle 8-9, near horizon, only uv_ir filter; 6" f/3 Newtonian, mod. Canon 77d; 71x20 sec; from July 7th, 2023; Blue will be Gray, nearly without filter;


M8 + M20 Area: example for bortle 8-9, near horizon, only uv_ir filter; 6" f/3 Newtonian, mod. Canon 77d; 71x20 sec; from July 7th, 2023; Blue will be Gray, nearly without filter;





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