Subauroral Proton Aurora over Norway. January 21, 2026.

From about 17:04 UTC (18:04 local time) to 17:35 (18:35 local time) I photographed faint, diffuse green patches low on the southern horizon from Ørsta, Norway.
There were no other form of aurora present. They pulsed/appeared and disappeared continuously.

Initially there was a double banded structure, that later formed into a more elongated and diffuse structure. Most likely as a consequense
as the EMIC-driven precipitation diminished. The double-stucture phase lasted for about for about 7 minutes (17:04 to 17:11 UTC).

Please, find timestamp on images to show their development.

Details: Canon RP, 7.5mm fisheye-lens. Iso: 5000. Exposure: 2. seconds. Canon 650D, 8mm fisheye lens (three lowermost images).

This was the last pulsation of the IPA.

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