Fig. 40: Milky way above the observing site (former tank shooting place of Swiss army) on Gurnigel. Passing by cirrus clouds are poisoned with light waste from the cities in Switzerland. Single frame out of a timelapse sequence. — EXIF: Nikon D850; Δt=25 s; f=14 mm; f/3.5; ISO 6400; 2019-08-30 23:12:28
