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Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki

Ursa Astronomical Association

All-sky aurora - 16.3.2023 at 01.00 - 16.3.2023 at 02.00 Jyväskylä Observation number 113472

Visibility IV / V

Petri Tikkanen, Jyväskylän Sirius

Every time I wake up at night, I glance at the Jyväskylä Sirius All-Sky cameras from my phone.
Last night, I had to get out of bed and take my camera to the nearby park to shoot.
As the sunspot maximum approaches, these amazing aurora borealis are becoming more and more frequent!
Canon 650D
Sigma 10mm f/2.8
1s f/2.8 ISO 3200

More similar observations
Additional information
  • Aurora brightness
    • Bright auroras
  • Observed aurora forms
    • Corona info

      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 info

      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 info

      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.

Technical information

Canon 650D
Sigma 10mm f/2.8
1s f/2.8 ISO 3200

Comments: 1 pcs
Eero Karvinen - 16.3.2023 at 17.31 Report this

Komeat, laaja-alaiset revontulet!

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