Category Archives: Atmosphere

Red Arc, and Aurora Corona. October 30, 2025.

There was a Red Arc lingering in the western sky from about 20:38 – 21:02 UTC. It was followed by a beautiful display of aurora corona.

Beautiful aurora corona overhead. These are most commonly seen in Northern-Norway, but these were observed from Ørsta, Norway (62nd Lat. N). Details: Canon 650D, 8mm fisheye-lens.

Polar stratospheric clouds. January 31, 2025.

According to NASA’s MERRA-2 climate model, the temparature in the stratosphere was sufficiently low (on January 31, 2025) to form Polar Stratospheric Clouds. In the western sky after Sunset there was something I reckon was PSC clouds. Location: Ørsta, Norway. Photo details: Canon 800D, Sigma 50-500mm lens.

Lunar Upper Tangent Arc and Aurora Borealis. November 19, 2024.

As the bright moon was about to rise, I noticed an Upper tangent arc above the mountainside. A brief, and mild display of the northern lights occured, and colored the wintry scene. A few images of the display displayed below. Photo details: Canon 650D, Samyang 8mm fisheye-lens.