Contact information

Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

Aurora rays - 1.1.2016 at 04.06 Kauhava Observation number 46826

Visibility II / V


After the turn of the year, I was left waiting to see if the Cloud Cover would crack, as predicted, in order to be able to try to photograph possible northern lights for the first time. By two o'clock I was already going to bed, but then the cloud cover was clearly starting to thin, so I decided to still wait. The edge of the cloud appeared on the horizon and finally just before four o'clock, the northern sky was revealed with its northern lights!

A total of just over an hour came after the play was followed. The most handsome stage was right after four, and it only took about 10 minutes. After that, the brightness of the northern lights clearly decreased.

In addition to the rays shown in the pictures, in a wider area of the sky, dimmer "spots" varying in brightness from time to time were observed at a really fast pace (spotty?).



More similar observations
Additional information
  • Aurora brightness
    • 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
    • ;Rays
Technical information

Nikon D750, Sigma 18-200 mm (18 mm), F3.5, ISO400, 13s.

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