Visibility II / V
Finally, we were promised a cloudless winter vacation and got to work on bonga. After arriving at the bongause place, a test picture of the sky and a nice-looking arc was there in the sky. I set the camera on the shore to take pictures and went a little way to the fire place, to build a fire from the nice embers someone left. After some time, I went to check the camera and already saw on the camera screen that there were special stripes above the northern lights arc. I interpreted them on the spot as air glow.
I went to change places on the beach, the purpose was to try to get some kind of picture of the comet, if the northern lights don't get excited. Well, that's what happened traditionally. After five minutes of walking, the sky was suddenly completely overcast. After a couple of minutes, an unimaginably dense fog arrived. Once again. In five minutes, you can go from a pleasant sky to completely gray.
Based on a tip from a photographer colleague (Thanks to Tommy Lågland, who always has enough interest and stamina to analyze the events in the sky better than myself), I started looking for possible dunes in the picture. This resulted in an interesting timelapse, which the camera shot from 18:21 to 19:04. What I interpreted as an airglow on the spot was indeed dim in the sky the whole time, but in the final stage of the timelapse it would seem as if the aurora borealis passed through this glow, brightening it.