Airglow The image was captured at 15mm f2.8 ISO 4000 for 20 seconds Airglow (also called nightglow) is a faint emission of light by a planetary atmosphere. In the case of Earth's atmosphere, this optical phenomenon causes the night sky never to be completely dark, even after the effects of starlight and diffused sunlight from the far side are removed. This phenomenon originates with self-illuminated gases and has no relationship with Earth's magnetism or sunspot activity. See more of my Bryce Canyon National Park photography here. |
![]() Bryce Canyon National Park Utah June 6, 2024 1:50 am ![]() |