Contact information

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

Ursa Astronomical Association

Clearly visible night shining clouds - 4.7.2012 at 01.30 Helsinki Observation number 5912

Visibility III / V


There were light streaks in the sky again. The full moon waved on the low opposite side. Coverage was lower than on June 29, 2012. The clouds appeared for about an hour.



More similar observations
Additional information
  • Cloud coverage in the sky
    • Covered 1/4 of the sky
  • Havainto
    • Night shining clouds
  • Noctilucent clouds
    • 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.

  • Brightness of the noctilucent clouds
    • Clearly visible night shining clouds
Technical information

D800, Tamron 28-75 mm, picture1: 44mm / 2,5s / F9 / ISO80, picture2: 66mm / 1,3s / F6.3 / ISO100, picture3: 56mm / 4s / F8 / ISO64 /

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