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

Ursa Astronomical Association

Clearly visible night shining clouds - 18.7.2011 at 00.30 Turku Observation number 861

Visibility III / V

Joni Tahkoniemi, Ursa (Länsi-Suomi)

A play consisting of a few clear belts and some wave, the view of which was disturbed by clouds slightly to the northwest.

More night clouds .

at 00.30: 330-350, 15-25, IIb 2
01:00: 340-070, 20-45, I, IIab 1-3
01:30: 010-090, 15-40, IIab, IIIa



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.

    • 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
Technical information

Canon 40D + EF-S 17-85mm f / 4-5.6

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