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Ursa Astronomical Association

Clearly visible night shining clouds - 26.7.2021 at 00.30 - 26.7.2021 at 01.30 Helsinki Observation number 99929

Visibility III / V

Half past one I noticed a check on the situation and the show had clearly started and accordingly continued for at least half past two (window shots). Guessing in itself, but the duration of the show could have been well over a quarter longer at both ends. With the help of the driver, it was easily seen that the upper edge of the area between the northwest and the north only reached a height of 10 degrees (Fig. 3).

Edit. With the help of the driver, it was also seen that the area extended over the north to the northeast.

More similar observations
Additional information
  • Havainto
    • Night shining clouds
  • Cloud coverage in the sky
    • Very small area
  • 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
Comments: 2 pcs
Veikko Mäkelä - 26.7.2021 at 13.18 Report this

Huomasin ekan kerran jo klo 23.37.  Oli kirkkaimmillaan klo 1 molemmin puolin, mutta hyytyi jo klo 2: een mennessä ja klo 3 vain aavistuksia nähtävissä. Heikkoa höttöä taisi olla pariinkymmeneen asteeseen saakka parhaimmillaan. 

Mikko Peussa - 26.7.2021 at 13.19 Report this

Kattavan setin keräsit jälleen! Ekan kuvan otin omaan havaintoon klo 00:07 Kemiönsaaren Kasnäsissä.

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