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 :
I also made a short animation of the airglow slowly moving in front of the stars: