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Ursa Astronomical Association
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Ursa Astronomical Association

Clearly visible night shining clouds - 5.6.2023 at 00.00 - 5.6.2023 at 01.40 Helsinki Observation number 116522

Visibility III / V

Matias Takala, Kuopion Saturnus

I received a message from Pirjo Koski at midnight that there might be illuminating night clouds. I took a peek from the balcony, and it could very well be true. It was decided to wait for it to get dark, I received a new message around 00:30. At that point it was quite clear that the season was definitely open. Considering the time of the season, it was quite an upbeat play.

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Additional information
  • Havainto
    • Night shining clouds
  • Brightness of the noctilucent clouds
    • Clearly visible night shining clouds
  • Cloud coverage in the sky
    • Covered 1/4 of the sky
  • Noctilucent clouds
    • 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.

    • 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.

    • Waves info

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

      Wavy NLC by Jari Luomanen.


      NLC waves by Hannu Määttänen.

    • Swirl info

      Swirls are curved night shining cloud forms. For example, a single night cloud belt or group of waves may be curved on a clear bend.

      The arrow indicates a slight vortex in the night cloud belt. Photo by Joni Tahkoniemi.

      Strong swirls in image taken by Veikko Mäkelä.

Comments: 2 pcs
Pirjo Koski - 5.6.2023 at 12.53 Report this

Kiitos Matias backuppaamisesta! 

Matias Takala - 5.6.2023 at 14.41 Report this

Kyllä Pirjo mössöt pistetään aina kuriin.

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