Contact information

Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

All-sky aurora - 26.9.2020 at 23.01 - 26.9.2020 at 23.13 Senja, Norja Observation number 94048

Visibility V / V

Pasi Tuomainen, Ursa (Itä-Suomi)

Senja on my adventure to the shore of a pond and there appears to be a bright stationary arch. That’s where I put the timelapse to pound. I shot it for 12 minutes, and it spread like a pretty fan. As I got away, I noticed that one foot of my camera tripod had fallen somewhere, and I could no longer find it in the bush. The annoyance was huge, however change this picture series is so meaningful to me that it was worth its damage, definitely!



More similar observations
Additional information
  • Aurora brightness
    • Bright 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.

    • Violet auroras info

      Usually in Lapland or even in the south you can see purple auroras in stronger aurora shows. The most common color in auroras along with green and red.

Technical information

Nikon D800, Sigma 20 mm f / 1.4, ISO 2500, 4 s

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