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Contact information

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

Ursa Astronomical Association

Active aurora band - 7.10.2018 at 21.00 - 7.10.2018 at 23.50 Espoo / Nurmijärvi Observation number 78340

Visibility Unclassified


For a long time bright warps all the way to the south coast. At first there were a few clouds as a nuisance, but behind them glowed, as you can see from the pictures. The powerful eruption that appeared shortly before midnight came as a surprise, and I didn’t really anticipate the best shooting location anymore. Great evening!



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Additional information
  • Aurora brightness
    • Bright auroras
  • Colors with unaided eye and other features
    • Flaming auroras info

      Flaming. This rare subclass of aurora does not mean so much a single shape, but a large area in the sky. In the flaming aurora, bright waves that are sweeping upward towards the magnetic zenith emerge in the sky. Very rarely waves can wipe downwards. Bands are usually reported during flaming, less often spots.

    • 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.

  • Observed aurora forms
    • ;Veil;Rays;Band;Arc
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