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Ursa Astronomical Association

Aurora rays - 4.11.2018 at 22.00 - 5.11.2018 at 00.00 Tervakoski Observation number 101704

Visibility III / V

Unfortunately, I don’t remember many times sar started. However, Sar was well visible and the magnificent you come.


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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: 3 pcs
Emma Bruus - 3.10.2021 at 22.00 Report this

Huikeaa settiä ja upeasti taltioitu!

Eero Karvinen - 4.10.2021 at 11.19 Report this

Kakkoskuvassa on tosi nätti SAR-kaaren osa ja sen alapuoliset vihreät läiskät.

Reea Lunden - 4.10.2021 at 12.22 Report this

Omaan silmään nuo läiskät näytti omituiselta, en ole aikaisemmin enkä tuon jälkeen nähnyt samanlaisia

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