Excellent shot Oivid 
I didn’t understood how you used pixel shift, did you run all shots on this mode?
Thanks, Nasos, in this case the pixel shift mode is mostly just used to automate sequences of 32 exposures without gaps between them. Each sequence has to be started manually or by careful use of an intervalometer. (With further testing I have found that with 30 sec exposures, which in reality is 32 seconds, and a 2 second release delay set in the pixel shift menu, an interval of 17min and 15 seconds with a one second "exposure time" work OK to continue the next sequence.) Pixel shift mode is limited upwards to max 30 sec exposures. As the tracking is not accurate enough it is unlikely to increase resolution, but the slight shifts might contribute to place noisy pixels at different positions, reducing walking noise etc. The proper process of manual dithering is to slightly shift the framing at intervals to randomly distribute fixed pattern noise on different pixels, but the shifts of the current pixel shift mode is probably too small to accomplish too much in this respect. (
One could wish for Nikon to introduce proper astro dithering with larger shifts as an alternative in firmware). I sometimes do micro-adjustments of polar alignment at 20 min intervals as an imperfect substitute for this, that may help a little in combination with inaccurate tracking.
