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taivaanvahti(at)ursa.fi

Ursa Astronomical Association

Clearly visible night shining clouds - 1.8.2020 at 00.30 - 1.8.2020 at 01.30 Mäntyharju Observation number 92456

Visibility III / V

Markku Siljama, Ursa (Etelä-Suomi)

A small, occasionally bright, rapidly changing night cloud show in the northeast under Capella. Swirling. Direction of movement to the southeast.

1 at 00.42

2. at 00.44

3. at 1.17 the waves of the north

4. at 1.24 a special S-shape in the northeast

5.6 and 7 at 1.28-1.35 the clouds moved rapidly to the southeast

Weather clear, warm!?! north wind

And the stars of Otava are now clearly visible when the comet has already gone on its journey.



More similar observations
Additional information
  • Havainto
    • Night shining clouds
  • Cloud coverage in the sky
    • Covered 1/8 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
    • Clearly visible night shining clouds
Comments: 1 pcs
Pentti Arpalahti - 1.8.2020 at 13.54 Report this

Hienoja. Näytöksessä oli selkeitä ja täsmällisiä rakenteita, joiden simultaanihavainnoista laskutaitoinen saisi tehtyä 3D-analyysiä.

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