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Tried to image this once before in RGB and failed dismally due to light pollution and so NB is my only choice but as you point out the Astronomik filter is a 12mm and I think that to do this object from polluted skies you need a max of 3mm filters.
Will try to get some more data but a 20 min sub didn't bring out any more detail, so it looks like I will have to get more subs to smooth everything out and bring out the faint stuff. Thank heavens for plate solving in SGPro as I was able to do an automatic meridian flip and it put the target back within 10 pixels on the chip.
Allan
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