All-sky aurora - 23.3.2023 at 20.24 - 23.3.2023 at 20.30 Kemijärvi Observation number 113698

Visibility IV / V

Jarkko Koskela

From the direction of Kemijärvi to Pyhätunturi, rwvontuli started to appear. There was no idea to stop, but in the sky we could see strange (to us) point-like (balls) rwvontuli. They were visible for about 5 minutes and were green to bluish in color. After 10 minutes the sky was full of more traditional aurora borealis. A phone as a camera.

found out the reason: https://www.kaleva.fi/oulun-taivaalla-nahtiin-ainutlaautinen-valoilmio-a/5428202

This description has been automatically translated from Finnish. Click here to see the original text.

0 0

Additional information

Aurora brightness
- Bright auroras
Observed aurora forms
- Corona
  
  CoronaA corona is a hand fan shaped structure, it usually forms south of the observer's zenith, most commonly consisting of rays or bands. The corona is usually the most beautiful part of the aurora show. It is bright and active, but on the other hand also short-lived.
  
  Aurora corona. Photo by Anna-Liisa Sarajärvi.
  
  Aurora corona. Photo by Merja Ruotsalainen.
  
  Corona formed from bands. Photo by Markku Ruonala.
  
  Aurora corona. Photo by Tapio Koski.

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.

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.

Newest observations

Contact information

All-sky aurora - 23.3.2023 at 20.24 - 23.3.2023 at 20.30 Kemijärvi Observation number 113698