This was the third night of aurora in succession. The evening was rather windy, and as a result the trees and flowers in the images appear a little bit blurred due to their movement. Although I could not detect it by eye (the sky was still very bright to the north in the twilight), the camera revealed a weak arc of aurora in the first photograph that I took at 00:12 UTC (Image 1). This arc slowly intensified over time until 00:33 (Image 2), after which it reached its brightest and most structured form of the evening with some rays briefly visible below the arc and readily visible to the naked eye (Image 3). Some very weak purple hues were visible along the top of the arc (Image 4). This continued until 00:39, after which activity diminished and the aurora band became difficult to see by the naked eye and appeared a weak green on camera (Image 5). At 00:47 there was a brief burst of bright activity lower along the northern horizon, that was mostly obscured behind the mountains (Image 6). A weak band of green aurora remained visible on camera until I ceased observations at 01:15, by which time the sky was clouding over.
Image 1. 00:12 UTC. Taken at: ISO = 1600, f/2.8 @ 14 mm, exposure = 8.3 sec. Looking north.
Image 2. 00:24 UTC. Taken at: ISO = 1600, f/2.8 @ 14 mm, exposure = 10 sec. Looking north.
Image 3. 00:34 UTC. Taken at: ISO = 1600, f/2.8 @ 14 mm, exposure = 13 sec. Looking north.
Image 4. 00:36 UTC. Taken at: ISO = 1600, f/2.8 @ 14 mm, exposure = 10 sec. Looking north.
Image 5. 00:43 UTC. Taken at: ISO = 1600, f/2.8 @ 14 mm, exposure = 12 sec. Looking north.
Image 6. 00:47 UTC. Taken at: ISO = 1600, f/2.8 @ 14 mm, exposure = 11 sec. Looking north.
