Contact information

Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

Bright night shining clouds - 20.7.2021 at 23.45 - 21.7.2021 at 00.30 Espoo Observation number 99795

Visibility IV / V

This must have been the widest and densest nightmare cloud I have ever seen. At 23.45 a balcony view, the clouds continued as a continuous ferry even slightly south of the zenith from the sky to the north skyline. As the sun set lower, of course, the boundary of the visible clouds also flew north, and at the last glance before going to bed at about 00.30 the boundary was already north of the zenith.

However, I didn’t even manage to go to the nearby pond for a photo hunt, but I just contented to take a quick observation image from the balcony.

Would anyone have access to some current satellite data? [or can these always be parked in a pile with only a few days delay?] It would be interesting to know how far south the cloud ferry actually went.

More similar observations
Additional information
  • Havainto
    • Night shining clouds
  • Cloud coverage in the sky
    • Covered about half of the sky
  • 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
    • Bright night shining clouds
Send a comment

Comments are checked and moderated before publication If you want to contact the observer directly about possibilities to use these images, use the Media -form.



characters left

By sending in this comment I confirm, that I've read and understood the the observation system's privacy policy.