Bright night shining clouds - 23.7.2018 at 00.15 - 23.7.2018 at 01.00 Nurmijärvi, Lepsämä Observation number 75592

Visibility IV / V

Mikko Koivisto

The best set of the season so far. At first it was clearly located on the northeast side, but as it got dark, the northern cloud area became clearer.

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14 17

Additional information

Havainto
- Night shining clouds
Cloud coverage in the sky
- Covered 1/4 of the sky
Noctilucent clouds
- Waves
  
  Waves of noctilucent clouds are short, close groups of clouds.
  
  Wavy NLC by Jari Luomanen.
  
  NLC waves by Hannu Määttänen.
- Band
  
  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
  
  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
- Bright night shining clouds

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Bright night shining clouds - 23.7.2018 at 00.15 - 23.7.2018 at 01.00 Nurmijärvi, Lepsämä Observation number 75592