Clearly visible night shining clouds - 20.7.2021 at 23.30 Helsinki Observation number 99758

Visibility III / V

Tuomas Salo, Ursa (Helsinki)

I photographed illuminating night clouds that spread across the sky.

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Additional information

Havainto
- Night shining clouds
Cloud coverage in the sky
- Covered the whole sky
Noctilucent clouds
- Waves
  
  Waves of noctilucent clouds are short, close groups of clouds.
  
  Wavy NLC by Jari Luomanen.
  
  NLC waves by Hannu Määttänen.
- 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
- Clearly visible night shining clouds

Technical information

Camera Nikon D5100. Lens sigma 10-20mm wide angle.

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Clearly visible night shining clouds - 20.7.2021 at 23.30 Helsinki Observation number 99758