While photographing the aurora display over Filefjell something caught my eye. At first, it appeared to be a narrow cloud-like shape from west to east. Most of the sky was free of cloud except to the north. As my eyes adjusted the form had a subtle hue similar to some auroras.

Canon 70D body w/ Canon EF 24-70 f/2.8
Shot @: ISO1250, 24mm, f/3.5, 8.0sec. (hand held)

Adjusted exposure, shadows, and highlights.