![](https://www.salzgeber.at/wordpress/wp-content/uploads/2019/10/20191003_20-54-49_DSC_9670_2048px-1024x682.jpg)
A clear night in the Alps is something truly special for any amateur astronomer. The sky was mostly clear, and the air was very transparent. I caught a fleeting glimpse of the setting moon, first only seeing the earth-illuminated dark side peeking out behind a mountain ridge. But I only had wide-angle lenses with me, so I focused on the milky way.
In the images towards the east I noticed the distinctive colors and pattern of airglow https://en.wikipedia.org/wiki/Airglow :
![](https://www.salzgeber.at/wordpress/wp-content/uploads/2019/10/20191003_20-57-09_DSC_9673_2048px-1024x682.jpg)
I also made a short animation of the airglow slowly moving in front of the stars:
![](https://www.salzgeber.at/wordpress/wp-content/uploads/2019/10/20191003_21-03-34_DSC_9685-Pano_2048px-1024x398.jpg)
![](https://www.salzgeber.at/wordpress/wp-content/uploads/2019/10/DSC_9644_2048px-1024x682.jpg)
![](https://www.salzgeber.at/wordpress/wp-content/uploads/2019/10/DSC_9644_crop_2048px-1024x682.jpg)