In this photo editing tutorial, I show my complete workflow for processing star trail photos. My main focus when editing such images is, similar to my tutorial for processing night photos, to reflect the atmosphere of the night while showing enough detail to create interest in the foreground.
Because during a pitch black night, it’s hard to find a light source that could justify detail to be visible in the foreground, I often use a technique called time-blending to include glow from twilight. If introduced subtly, this glow can serve as the light source and help to create a better result.
As usual, the workflow I show in the tutorial ensures the highest possible quality for the resulting photos, a requirement for printing.