09-FEB-2008, looking west from Neuchatel Switzerland
It was a clear and cold day, which made watching contrails quite easy, we also had a very nice sunset. I started photographing at 18:30 for 30 minutes, 1 frame every 10 seconds. I have counted around 30 aircraft trails on close examination at highest resolution.
Time-lapse, 1 frame per minute from dawn to dusk compiled at 10 frames per second.
Part of the weather watching series by sergneri, 2010