By Randy Strauss | 2025-07-12
The Heavens Above
On 06/26/2025 11:34 pm by Amrinderjit Singh | Website | Tso-kar Lake region, Ladakh, India
It was a very clear night during my recent Ladakh trip. I enjoyed imaging there and what all I got is here for you. The sky was amazing and with a very strong airglow. 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.
Airglow is caused by various processes in the upper atmosphere of Earth, such as the recombination of atoms which were photoionized by the Sun during the day, luminescence caused by cosmic rays striking the upper atmosphere, and chemiluminescence caused mainly by oxygen and nitrogen reacting with hydroxyl free radicals at heights of a few hundred kilometres. It is not noticeable during the daytime due to the glare and scattering of sunlight. In visible light, oxygen produces green and red glow, hydroxyl (OH) molecules produce red light, and sodium produces a sickly yellow.
Capturing panels to create Panoramic image is always hectic but results are fruitful.
Canon R mirrorless and Rf 16mm lens
Tracking with iOptron Sky Guider Pro
Lightroom, Starnett++, Photoshop