Half-sky auroras - 17.9.2021 at 23.00 - 17.9.2021 at 23.59 Ulvila Observation number 101318

Visibility IV / V

Vesa Puistovaara, Porin Karhunvartijat

Quite a northern lights show was recorded at the Bear Camera last night.

It was a bit of luck insofar as the camera had been off for a whole week due to a software update, but I got the job done spinning at just the right time.

After all, I couldn't properly prepare for this, even the clouds were promised ... the shooting settings were still in search.

#sarg

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

0 6

Additional information

Aurora brightness
- Bright auroras
Observed aurora forms
- Stable Auroral Red (SAR) arc
  
  The Stable Auroral Red arcs (SAR arcs) are usually clearly distanced to the south from the aurora oval and is a very opaque and normally red ribbon. In most cases SAR arcs are only visible in the photo or on the liveview screen of the SLR camera. Using a camera with very high sensitivity is the best method for capturing these faint arcs. The arch usually settles between east and west.
  
  A stable red arc of aurora is a rare phenomenon. In some rare occasions, several SAR arcs may be simultaneously visible.
  
  The first SAR arcs of the Skywarden were observed on nights between November 3-4. and 4-5. days in 2015 in the latitudes of central Finland.
  
  SAR arc photographed by Lasse Nurminen 2018. Observation of the Skywarden 79113.

Comments: 2 pcs

Jarkko Suominen - 20.9.2021 at 08.55

Hienoon aikaan kyllä valmistui tuo päivitys!

Juha Ojanperä - 20.9.2021 at 10.56

Ajoitus ei olisi voinut olla parempi!

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Half-sky auroras - 17.9.2021 at 23.00 - 17.9.2021 at 23.59 Ulvila Observation number 101318