I took this picture on 19. September 2020. I started imaging this before full dark. As I looked at the single sub-exposures found it interesting to see how the backlight got dimmer over time. The first picture(55s) I took at 21:34 the last one (55s) I took at 0:37. You can definitely make out a difference.
21:34 
0:37
Yes, I know there is a ton of Vignietting going on in my Setup. You can also see it on the left side of the Final Image. Even though I always take Flats I cannot get rid of it!