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Ursa Astronomical Association
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Ursa Astronomical Association

Hyvin heikkoja yöpilviä - 15.7.2021 at 00.50 - 15.7.2021 at 01.40 Sysmä Observation number 99589

Visibility I / V

Arja-Sisko Airila, Ursa (Etelä-Suomi)

In the yard, I went to the hustle and bustle to see if there were any illuminating night clouds. In the high east there were very dim night clouds as well as in the southern sky. To the west and north I did not see the situation because of the forest, and I could not go to a more open place to look at the situation. I still went out at 1:40 to look at the sky, but then only a very dim dim cloud of night clouds was visible in the eastern sky. Pictures taken with paperback with auto setting, so poorly visible in pictures. Exposure and contrast added to image processing with images. The sky was clear, calm, +22 degrees warm.

More similar observations
Additional information
  • Havainto
    • Night shining clouds
  • Cloud coverage in the sky
    • Very small area
  • 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.

  • Brightness of the noctilucent clouds
    • Very dim night shining clouds
Technical information

Canon PowerShot

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