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CYGNUS_Ha_4_pane_RBG
 
© SteveNickolls 2018
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CYGNUS_Ha_4_pane_RBG

SteveNickolls
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Over four sessions in September and October this year as weather allowed I was able to put together a four-pane Ha mosaic of part of Cygnus utilising my Star Adventurer mount. Each pane was made from x18-x24 300 second light frames taken with a modified Canon 700D DSLR, Astronomik 12nm Ha filter and Samyang 135mm lens, exposures were at f/2 and ISO 400. Library temperature matching dark frames were employed in the staking process as were master flat and bias frames. Stacking was done using Deep Sky Stacker and further processed using StarTools. MS ICE was then used to stitch the panes together. I particularly like the dark veins of dust connecting the Northern Coal Sack to the areas of nebulosity on either side of it. This version out of StarTools used the original RGB file which was processed with the monochrome version with a 30% percentage treatment using StarTools LAYER module to bring out highlights.

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© SteveNickolls 2018
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