Photoshop

Glowing in Excitement!
Last month, while I visited the pristine dark skies of Ladakh, I captured something for the first time in my life. Me and my friends were so excited when we saw these at the back of our camera! Airglow it is. During our session at Pangong, we came across a strong green airglow and 2 days later, at Hanle, we captured the yellow-orange airglow.
Airglow is a photochemical luminescence caused by solar radiation interacting with the atoms and molecules present in the upper atmosphere. Solar radiation mostly interacts with:
1. Sodium (Na) producing yellow-orange (590nm) airglow
2. Hydroxyl (OH) and molecular Oxygen (O2) producing red (650-700nm) and Violet-Blue (380-490nm) airglow
3. Molecular Oxygen (O) producing green (508nm), orange-red (629nm) and red (632nm) airglow.
The image is a collage from two photos captured at Hanle (top) and Pangong (bottom).

Nikon Z6ii
Tamron 15-30mm
ioptron skyguider pro
Exif: 90 seconds, f/4, ISO 1250, 15mm for both parts.