Showing posts with label Nightsky. Show all posts
Showing posts with label Nightsky. Show all posts

Wednesday, July 21, 2021

Noctilucent clouds

Noctilucent clouds, or night shining clouds, are tenuous cloud-like phenomena in the upper atmosphere of Earth. They consist of ice crystals and are only visible during astronomical twilight. Noctilucent roughly means "night shining" in Latin. They are most often observed during the summer months from latitudes between ±50° and ±70°. Too faint to be seen in daylight, they are visible only when the observer and the lower layers of the atmosphere are in Earth's shadow, but while these very high clouds are still in sunlight. Recent studies suggest that increased atmospheric methane emissions produce additional water vapor once the methane molecules reach the mesosphere – creating, or reinforcing existing noctilucent clouds.

They are the highest clouds in Earth's atmosphere, located in the mesosphere at altitudes of around 76 to 85 km.




My other blogs:

Roadscape Photography
Chevrolet El Camino 1970
Life @ Loimaa, mostly Finnish

Thursday, January 21, 2021

Long time from last time

This use to be my blog where IFTT posted what I posted on my now deleted Instagram with tag Sky is my canvas. Now I thought I just start to post straight to here when I encounter something worth while.

So here are few photos from past... I don't really know.


That's from February 2020. Nahkalinna's dam. 



Sun had just settled in, in November 2020.


Milkyway from "my backyard", which is roughly 100 meter away park from my own yard.

My other blogs:

Photo galleries from an I am rambling on here, no agenda
Roadscpe
Chevrolet El Camino 1970
Life @ Loimaa, mostly Finnish