This in an 11 panel mosaic, 200 hours 35 minutes total exposure, 2296 subs. Ha and Lum is 14 hours 15 respectively and the rest is RGB.
The image is taken over several nights in October using the Skywatcher 80ED and the Atik 460EXm on an Astro-Physics 1600GTO. The location is the centre of the city of Lyon, France.