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Ursa Astronomical Association

Quiet aurora band - 27.8.2022 at 22.45 - 28.8.2022 at 02.10 Taipalsaari Observation number 108971

Visibility II / V

On Saturday evening, the repos meters were in such a way that you had to start driving as soon as it got dark. After reaching the beach, a double arc was visible in the sky, which started to come alive little by little (first photo). And what a beautiful substorm it was. I saw the green color with my own eyes, and for a while the red color got stronger so that I could see it (picture 4). From the pictures, I again noticed the blue aurora borealis very strong. After the recovery phase of the substorm, a green "plump" began to form over the arc and the rays of violet rays, glowed a slightly turquoise green for a few minutes and disappeared (photo 5)
The rays rose, sometimes as far as Otava, and the northern lights lived on the north side of the arc, well into the morning and night. At one point the rays gathered at the northeast end of the arc and I decided to test if the SAR arc is visible in the sky. There it is, albeit dimly. Finally, diffuse pulsating aurora borealis took over the sky. Great night all in all.

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  • Aurora brightness
    • Bright auroras
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