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Ursa Astronomical Association
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Ursa Astronomical Association

Eye-catching night shining clouds - 21.7.2021 at 00.16 - 21.7.2021 at 02.05 Espoo Observation number 99819

Visibility V / V

Mika Yrjölä, Ursa (Etelä-Suomi)

The already traditional beginning of this summer’s observation of night clouds started with clear and visible night clouds seen from the balcony from the holiday of the trees. When I got out with the shooting verms, there was an immediate feeling that there was now an unusually handsome set on offer; at this point the night clouds were visible for more than half the sky and were handsome.

Already by the seashore I had to take a few pictures and the next almost two hours went by taking pictures of night clouds with water, buildings and trees on or near the Kivenlahti shoreline. The 152-image timelapse also accumulated, though unfortunately due to the slightly misplaced camera settings, two short pauses appeared, which appear as jerks. This time, the mosquitoes didn’t torment me either, so whatever it was while enjoying the views. Two more countries went home a little annoyed when they had to leave the show in the middle because of the work day ahead.

The observation site does not cover all the images, but is where most of the images are, but the rest are within a radius of about half a mile.

More similar observations
Additional information
  • Havainto
    • Night shining clouds
  • Cloud coverage in the sky
    • Covered 5/8 of the sky
  • Noctilucent clouds
    • 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.

    • 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
    • Eye-catching night shining clouds
Technical information

Canon 5D mk IV, ISO 200, used optics 16-35mm, 50mm and 100-400mm, raw image conversion with Darktable, timelapse stacked with ffmpeg.

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