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open cluster NGC 7789 from July 30th, 2019; 8" f/4 newtonian; only 35x30 sec; mod. Canon 77d; uv_ir filter;bortle 8 skies, over industrial area;


open cluster NGC 7789 from July 30th, 2019; 8" f/4 newtonian; only 35x30 sec; mod. Canon 77d; uv_ir filter;bortle 8 skies, over industrial area;





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