Polaris and Star TrailsThis is a combination of Polaris stacked with a full alignment of the star frames (of which I think DSS did an amazing job on, considering the movement involved) and then I took that and stacked it with the combined images from Nebulosity in which I aligned only Polaris to achieve the trails. This, technically becomes 2 hours and 4 minutes of time for the final image.
I stacked them in Gimp 2.6 and decreased the visibility percentage of the trails layer to show the motion, yet keep the focus to the stars layer.
Same approach to the classic star trails image, but slightly different.