Mother of Pearl clouds 5551

Mother of Pearl clouds 5551 - The daylight returns

Polar stratospheric clouds also known as nacreous clouds (from nacre, or mother of pearl), are clouds in the winter polar stratosphere at altitudes of 15,000–25,000 meters (50,000–80,000 ft). Compared with dark scudding low altitude clouds that might be present, nacreous clouds stand majestically in almost the same place - an indicator of their great height.
Due to their high altitude and the curvature of the surface of the Earth, these clouds will receive sunlight from below the horizon and reflect it to the ground, shining brightly well before dawn or after dusk. They form at very low temperatures, below −78 °C.

Pink and blue lights 5521

Also in: The daylight returns

Adventdalen 1060
Adventdalen 9503
Adventdalen 9506
Adventfjorden 2063
Adventfjorden 4963
Adventfjorden 7095
Agardhdalen 9433
Bergmesterbreen 9420
Bergmesterbreen 9421
Bergmesterbreen 9423
Bergmesterbreen 9442
Billefjorden 9441
Bjonahamna 5470
Chopping ice 0310