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Ursa Astronomical Association
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Ursa Astronomical Association

Active aurora band - 28.9.2021 at 21.30 - 28.9.2021 at 23.55 Nurmes, Valtimo Observation number 101636

Visibility III / V

Korona's opening wind still offered a play. During the evening, one clear substorm and a few brightnesses formed. The clouds covered the sky almost exactly as the day changed. Below are a few pictures of the sub storm.

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  • Aurora brightness
    • Dim auroras
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