Fireworks galaxy (NGC 6946) from Paris

[Dan_Paris]

 

   Hi,

last night, amidst the heat wave, I took some luminance data on this beautiful galaxy with the ASI183mm that I have blended with chrominance data with the ASI1600mm from last year. In both cases with my 8" f/4 imaging Newtonian

 

 

Thanks for looking,

 

Dan

 

Technical data

200/800 custom Newtonian astrograph with Romano Zen optics and carbon fiber tube
AP900 CP4 mount on Losmandy HD tripod
TS 2.5" Riccardi-Wynne corrector
ZWO LRGB filters
Guiding : ZWO OAG  + ASI120mm mini + AsiairV1
Luminance : 200 *60sec at -10°C with the ASI183mm
Chrominance : 30*60sec at -10°C each channel with the ASI1600mm
Darks, flats and synthetic biases
Conditions : Bortle 7 skies in Paris' suburbs (20km from the Eiffel tower), average seeing (2.5" after stacking), last quarter moon.
Preprocessing and stacking with Siril, processing with Pixinsight and Rawtherapee

Edited July 19, 2022 by Dan_Paris