I left my GoPro Hero 5 out at just after midnight local time. 2205 UTC 24.06.2017 Here is the timelapse 5 seconds interval between exposures. Variabe shutter and ISO. Shot in raw and converted to jpeg. Playback at 30 frames per second. Noctilucent Clouds 24-25.06.2017 Southeastern Norway GoPro Hero 5 Timelapse