The purpose of this image was to highlight the hydrogen clouds surrounding the area of Andromeda galaxy. These clouds seem to be located in our own galaxy, and therefore in the foreground of the picture.
It took 56 hours of broad- and narrowband imaging (34 hours of Hydrogen alpha) to get this result.
Full-resolution on Astrobin : https://astrob.in/hw3cbi/0/
Technical details :
ASKAR FRA600 + Red. f/3.9
Mount EQ6-r pro
Camera ZWO ASI2600 MM pro
Filters Antlia LRVB + Ha 3nm
ZWO OAG + ZWO ASI 290mm mini
ZWO EAF
ASIAIR Pro
Processing PixInsight + Photoshop CC
Integration :
L : 140x300s : 11h40′
R : 70x80s : 3h30′
G : 78x180s : 3h54′
B : 57x180s : 2h51′
Ha : 204x600s : 34h00
Total : 55h55′