Half-sky auroras - 19.3.2021 at 00.49 Kolari, Ylläs Observation number 101742

Visibility IV / V

Sirpa Pursiainen

Special layered, slightly spiral northern lights. I had never seen anything like it before. The pattern remained in the sky for a while (had time to take several pictures)

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2 3

Additional information

Aurora brightness
- Bright auroras
Observed aurora forms
- Form not identifiable
  
  Form not identifiable
  Sometimes auroras have to be observed in such poor conditions that it is not possible to reliably identify the shape even if for example the structure and conditions could be recognized. Such a situation could be the outcome of for example alight background sky, cloud cover or a covered horizon.

Colors with unaided eye and other features
- Green auroras
  
  Green, seen with the naked eye, is one the most common colors of the aurora. The green color is derived from atomic oxygen.
  
  Green auroras. Lea Rahtu-Korpela.
  
  Green auroras. Photo by Juha Ojanperä.

Comments: 2 pcs

Emma Bruus - 6.10.2021 at 21.45

Tässä on kyllä jotain maagista. Hieno bongaus!

Eero Karvinen - 9.10.2021 at 11.41

Olivatko nuo muodot ennen vai jälkeen alimyrskyn? Äkkiseltään katsottuna voisivat olla chorus-aaltojen luomia sykkiviä diffuuseja revontulia.

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Half-sky auroras - 19.3.2021 at 00.49 Kolari, Ylläs Observation number 101742