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Ursa Astronomical Association

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.


More similar observations
Additional information
  • Aurora brightness
    • Bright auroras
  • Observed aurora forms
    • Stable Auroral Red (SAR) arc info

      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 Report this

Hienoon aikaan kyllä valmistui tuo päivitys!


Juha Ojanperä - 20.9.2021 at 10.56 Report this

Ajoitus ei olisi voinut olla parempi!

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