Hi All,
This is one I have been working on for some time now. First phase was a bicolour (Ha/Oii) composition. I have now added the remaining SII data as suggested by Paul Haese and a few others (thank you
). The SII has some very tight detail, effectively it appears as a structural highlight. Initial test subs of this were pretty useless as I had the wrong settings and there was very little signal there. I gave it another go last night during a fairly full moon and random clouds passing over, neither of which seemed to impact the long subs.
I don't think I'll add RGB stars as they seem ok to me like this. After the last few images from the CDK I am really starting to get some respect for it. Matched with small pixels, the resolution is pretty cool.
Image details:
Telescope: CDK 12.5 @ f/8 , 0.44" pp
Camera: SBIG STT-8300
Composition: Ha, SII, and OIII, 450:630:390, all subs bin 1x1, 24.5hours total.
Astrobin:
http://www.astrobin.com/full/169020/C/