Fig. 17: Despite some cirrus clouds passing over the sky I could create this composite of comet Neowise. 10 light frames with 20 seconds exposure time at ISO 800 with Nikon D850 and Nikkor 300mm 2.8D plus 50 dark frames. 19 July 2020, Bözberg. Nikon D850; Δt=20 s; f=300 mm; f/2.8; ISO 800; 19 July 2020 01:22:35
