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Ursa Astronomical Association
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Ursa Astronomical Association

Half-sky auroras - 27.10.2014 at 23.55 Kuusamo Observation number 31374

Visibility IV / V

Johan was coming! Incredibly fast glimpses over a wide area.

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Additional information
  • Aurora brightness
    • Very bright auroras
  • Colors with unaided eye and other features
    • Pulsating auroras info

      Pulsating aurora. The brightness of the pulsating aurora usually varies rhythmically over a period that can be only a fraction of a second at its fastest, but can also be several minutes. Pulsing usually only occurs in(strong auroral conditions) higher quality shows , especially towards the end of them. However, the pulsation may be followed by yet another eruption. Sometimes the variation in brightness is at the same stage in the whole form, whereby the whole form "turns on and off" at the same time. Pulsation is also found in arches and bands, but above all in spots..

    • 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.

  • Observed aurora forms
    • ;Veil;Rays;Corona
Comments: 2 pcs
Olli Sälevä - 28.10.2014 at 15.58 Report this

Nopeita tulia oli Rovaniemelläkin, enpä ole aiemmin mokomia katsellut ja kuvannut.

Vesa-Matti Kleemola - 28.10.2014 at 18.52 Report this

Lähes kuin elosalamia olisi ollut yläpuolella, aivan uskomaton fiilis oli niitä tiiraillessa. Videokamera olisi ollut kova sana. Ja pitkätkalsarit + hanskat + pilkkihaalari...

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