Noctilucents above Croatia by Luka Horvat What appears to be noctilucent clouds. Never seen it before. Image Data Place Rijeka, Croatia Date 21/06/2019 Date Exif 21/06/2019 Camera NIKON D700 Resolution Original 4256 x 2832, cropped 3936 x 2619 Aperture ƒ/5.6 Focal Length 28mm ISO 200 Shutter Speed 1/0.5s Equipment Nikon D700, Nikon 28mm f/2.8 AI-s, handheld against the chimney, taken from the roof at 9:02 PM.