Contact information

Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

Dim night shining clouds - 27.7.2014 at 02.00 - 27.7.2014 at 03.03 Hausjärvi Observation number 28086

Visibility II / V


It wasn’t until five years earlier that I first managed to see and photograph the illuminating night clouds in the same spot. At the beginning of this year’s night cloud season, I had only received backup images of the negative observation, but now the clouds had returned. The air was moist, with a temperature of 16 degrees and a relative humidity of 79%. Only a couple of mosquitoes sought a suitable injection site. The night clouds were dim, but the performance first extended from northwest to northeast as the northeast group slid by three to the east and in the northwest the clouds reached 40 degrees. First image northeast 2.20, panorama 2.07 and third image east 2.35.



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
    • Dim night shining clouds
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