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Ursa Astronomical Association

Quiet aurora arc - 30.10.2013 at 20.35 Tampere Observation number 19539

Visibility II / V

Tapio Lahtinen, Tampereen Ursa

I picked up the girl from the hobby and when I came I turned to a new place (dump) to check what the vistas are there.
Visibility was pretty good but there was enough light pollution.
Before leaving, the weather camera had dim greenery and nothing could be seen with that naked eye on that hill either.
But the camera saw and I took a few pictures for a panoramic experiment.
The first combined with a Photoshop automaton and the second with Micrsofot's ICE. In the second, 'more natural light pollution coloring'.

More similar observations
Additional information
  • Aurora brightness
    • Can only be seen in photos
  • 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.

Technical information

Canon 1000D, 17-70mm

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