Attempt 1 - "Rough" manually stacked at 4am following the image session

Attempt 2 - Stack of 5 ISO1600, 120s frames (ImagesPlus)
Although a lot smoother, the core detail of the nebula is washed out.
Attempt 3 - Stack of 4 ISO1600, 120s frames and 5 ISO 1600 180s frames (ImagesPlus)
The loop becomes visible...
Combined Presentation
Re-processed version
Latest Processing Run