Half-sky auroras - 14.3.2022 at 01.00 - 14.3.2022 at 02.30 Äänekoski Observation number 105173

Visibility IV / V

Paula Häyrinen

With the naked eye, there were no particularly bright northern lights in the sky at first, but the camera images showed colors that the eyes did not distinguish from the sky. The warps were at their best between 1 and 2:30 a.m., after which they faded and a thin cloud of clouds appeared in the sky. At first there were flares, then the northern lights spread well over half the sky, sometimes moving very fast. The most special were at around 02 o'clock the sharp "scaly" and pastel-colored northern lights patterns. Photographed with camera automation, by hand.

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

0 5

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.
- Band
  
  Bands are usually narrower, more twisty at the bottom, brighter, and more active than arches. Bands usually develop from arches.
  
  Bands can form J and U shapes, sometimes even full spirals. The corona can also arise from bands. Bands are a fairly common form of aurora.
  
  Aurora band. Photo by Merja Ruotsalainen.
  
  Aurora band. Photo by Matias Takala.
  
  Aurora band. Photo by Lea Rahtu-Korpela.
  
  Aurora bands. Photo by Lauri Koivuluoma.
  
  Aurora band. Photo by Matias Takala.

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

Half-sky auroras - 14.3.2022 at 01.00 - 14.3.2022 at 02.30 Äänekoski Observation number 105173