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Ursa Astronomical Association
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00130 Helsinki

Ursa Astronomical Association

Eye-catching night shining clouds - 28.7.2018 at 00.45 - 28.7.2018 at 03.45 Säkylä-Turku Observation number 77274

Visibility V / V

Juha Ojanperä, Linda Laakso, Porin Karhunvartijat

Linda and I were witnessing a lunar eclipse in Säkylä. At the same time, there were also really handsome night clouds in the northern sky. The night cloud area extended from east to west and to an altitude of about 30 degrees (Capella altitude). In the form of mainly gauze, belts and waves. At its best, the night clouds were really spectacular.

We stopped watching the lunar eclipse at 01.30 and set off to drive towards Turku. The night clouds were visible throughout the trip. The night clouds were still visible at 03.45 when I was going to sleep.

Figure 1. at 2 p.m. north, f / 2.8, 1 / 4s

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Additional information
  • Havainto
    • Night shining clouds
  • Cloud coverage in the sky
    • Covered 1/4 of the sky
  • Noctilucent clouds
    • Waves info

      Waves of noctilucent clouds are short, close groups of clouds.

      Wavy NLC by Jari Luomanen.


      NLC waves by Hannu Määttänen.

    • Band info

      Bands of noctilucent clouds are long, stripe like cloudformation.

      A single, very bright NLC band. Photo by Mikko Peussa.


      On the upper left corner, rising bands are clear on the image. Whereas waves of NLC cover the bottom right side of the image. Photo by Juha Tonttila.

    • Veil info

      The night cloud vail is a vague thin night shining cloud with no clear structure.

      Noctilucent cloud veil with one strong belt formation. Image by Veikko Mäkelä.

Technical information

Camera: Canon FTb, film: Kodak Tri-X 400, developer: Ilford Ilfotec DD-X, 9 min 20 ast.

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