Veil Nebula Post Processing (DSS Red Output Image)

[Nebula12]

 

Hello everybody,

I have just started doing Astrophotography and wondered if anyone could give some advice.

I have stacked a number of raw files into DSS producing the output tif attached of the veil nebula, if they help in anyway I have included the original raw files.

What I am trying to discover is why the staked image comes out so red and some parts show swirls when the image is stretched.

I have used a Sony DSLR A58 with a light pollution filter.

Many thanks in advance.

Autosave.tif HGC 6960 - Veil Nebula 5.ARW HGC 6960 - Veil Nebula 4.ARW HGC 6960 - Veil Nebula 3.ARW HGC 6960 - Veil Nebula 2.ARW HGC 6960 - Veil Nebula 1.ARW HGC 6960 - Veil Nebula 6.ARW HGC 6960 - Veil Nebula Bias 1.ARW HGC 6960 - Veil Nebula Bias 2.ARW HGC 6960 - Veil Nebula Bias 3.ARW HGC 6960 - Veil Nebula Bias 4.ARW HGC 6960 - Veil Nebula Dark 1.ARW