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Ursa Astronomical Association

Quiet aurora band - 8.8.2022 at 22.00 - 9.8.2022 at 04.00 Vesanto Observation number 108267

Visibility II / V

Timo Kuhmonen, Ursa (Etelä-Suomi)

The aurora as seen by a fireball camera. The timelapse sequence covers the times 22:00...22:30 UTC. The aurora borealis was a bit muted in the clear sky, partially burnt out on the camera cell due to the brighter sky. The shapes of the northern lights can be seen above the tree... At the same time, radio observations of the whole night are also on display, i.e. the progression of the Aurora signal (6m radio beacons). Marked with a red arrow in the picture is the center of the timelapse sequence (OH9SIX lighthouse). Other beacons were hardly heard during the night in question...

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Additional information
  • Aurora brightness
    • Dim auroras
  • Observed aurora forms
    • Band info

      Bands are usually narrower, more twisty at the bottom, brighter, and more active than arches. Bands usually develop from arches.

      Bands can form J and U shapes, sometimes even full spirals. The corona can also arise from bands. Bands are a fairly common form of aurora.

      Aurora band. Photo by Merja Ruotsalainen.

      Aurora band. Photo by Matias Takala.

      Aurora band. Photo by Lea Rahtu-Korpela.

      Aurora bands. Photo by Lauri Koivuluoma.

      Aurora band. Photo by Matias Takala.

  • Colors with unaided eye and other features
    • Green auroras info

      Green, seen with the naked eye, is one the most common colors of the aurora. The green color is derived from atomic oxygen.

      Green auroras. Lea Rahtu-Korpela.

      Green auroras. Photo by Juha Ojanperä.

Technical information

Watec 910, Tamron 4-12mm/f1.2, UFO Capture v2

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