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Ursa Astronomical Association

Clearly visible night shining clouds - 19.7.2021 at 01.00 - 19.7.2021 at 01.55 Sysmä Observation number 99717

Visibility III / V

Arja-Sisko Airila, Ursa (Etelä-Suomi)

Illuminating night clouds were visible in the sky in long belts east and west high. The belts extended from the middle sky all the way to the southern sky at one o'clock. Later, the bands visible in the middle sky faded. Bright belts were still visible in the northeast and northwest, and in the northern sky at 1:45 p.m. Below the long night cloud belt of the east, an area of transverse belts, like a ladder, appeared. The brightness of the pocket is so low that contrast and brightness have been added to the images.

Pictures 1. northwest 1:44, 2nd northeast 1:46, 3rd north 1:49.

More similar observations
Additional information
  • Havainto
    • Night shining clouds
  • Cloud coverage in the sky
    • Covered about half 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.

  • Brightness of the noctilucent clouds
    • Clearly visible night shining clouds
Technical information

Canon PowerShot

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