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Ursa Astronomical Association
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00130 Helsinki

Ursa Astronomical Association

Half-sky auroras - 27.8.2021 at 22.50 - 28.8.2021 at 01.30 Rautalampi Observation number 101320

Visibility IV / V

Emma Bruus, Ursa (Etelä-Suomi)

The curves whirled in the intoxication of Friday night to the pattern that the color of the sky might be changing. Already from the village track you could see how a beautiful green belt of northern lights waved in the north.

I was speeding to the boat dock in the church village . By the time I got the camera up, the green belt had already turned into a mess. I watched the silent go for a moment and continued to walk farther from the lights of the agglomeration .

The routine for filming was clearly lost after the summer. When one of the pedestals failed underneath, the entire treatment plastered into the butt next to the bag stop. I warmly commended the silicone cases and screen protectors placed around the camera, as the imaging equipment didn’t seem to suffer from the gig in any way on the covers. And anyone who has ever shot with a 14mm Samyang knows that its front lens is outright begging for trouble at night in the queue at the kiosk.

In the end, it showed that I wasn’t quite as lucky as I thought. The devil of the lens no longer focused on infinity ... or at least infinity wasn't where it used to be. As you cover this, the clouds creep to cover everything that is still to be photographed.

More similar observations
Additional information
  • Aurora brightness
    • Dim auroras
  • Observed aurora forms
    • Arc info

      ARC The arcs are wider than the bands and do not fold as strongly. The arcs are normally neither very bright nor active.

      The arc is probably the most common form of aurora. When aurora show is a calm arc in the low northern sky it often doesn’t evolve to anything more during night. In more active shows the arc is often the first form to appear and the last to disappear.

      The lower edge of the arc is usually sharp but the upper edge can gradually blend into the background sky. As activity increases rays and folds normally develop, and the arcs turn gradually into bands.

      An aurora arc runs across the picture. Vertical shapes are rays. Photo by Atacan Ergin.

      Aurora Arc. Photo by Mauri Korpi.

      Aurora Arc. Photo by Anna-Liisa Sarajärvi.

      Aurora Arc. Photo by Matti Asumalahti.

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