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Ursa Astronomical Association
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Ursa Astronomical Association

All-sky aurora - 17.3.2015 at 20.00 - 17.3.2015 at 21.00 Kangasala, Sahalahti Observation number 34475

Visibility V / V

Really beautiful northern lights hit a bright evening on March 17th. The sky flickered green and bluish, and even red stood out in the eastern sky.
In the last picture, the comet Lovejoy stands next to Cassiopeian Ruchbah.

Added video (March 27, 2016).

More similar observations
Additional information
  • Colors with unaided eye and other features
    • Flickering auroras info

      Flickering. This rare subclass refers to a situation where irregular variations in brightness occur in aurora, such as in fluttering flames.

    • Flaming auroras info

      Flaming. This rare subclass of aurora does not mean so much a single shape, but a large area in the sky. In the flaming aurora, bright waves that are sweeping upward towards the magnetic zenith emerge in the sky. Very rarely waves can wipe downwards. Bands are usually reported during flaming, less often spots.

    • 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..

    • Blue auroras info

      Clearly blue auroras can be seen only during the best aurora displays close to the maximum phase or soon after it. Sometimes blue auroras can be seen shortly after the sunset at the top part of the auroral shapes, specially rays. It is created by the mission of the ionized nitrogen molecules created by the suns radiation.

      Strongly colored blue auroras. Photo by Jorma Mäntylä.

      Blue top parts of the aurora. Image by Tom Eklund. 

      Blue top parts of the aurora. Image by Jaakko Hatanpää.

      Partly blue corona. Photo by Tapio Koski.

      Faintly blue top parts of an aurora veil. Photo by Jaakko Hatanpää.

    • Red coloration of the shapes lower edge info

      Red lower edge visible with the naked eye. The bands which are starting to level up their activity and are green colored have quite often a narrow red lower edge. This is the most common form of red color which is derived from molecular nitrogen.

      Aurora band with purple lower edge. Photo by Ilmo Kemppainen.

      The low hanging brightest aurora band is colored red at the lower edge. Photo by Tero Ohranen.

      Narrow purple reddish tones at the lower part of this aurora band. Photo by Merja Ruotsalainen.

      Purple band at the bottom. Photo by Panu Lahtinen.

    • 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.

    • White auroras info

      Paljain silmin valkoinen väri näkyy useimmiten himmeissä näytelmissä, kun silmä ei kykene erottamaan mitään varsinaista väriä. Harvoin kirkkaissa näytelmissä valkoinen väri voi myös syntyä sopivista vihreän, punaisen ja sinisen yhdistelmistä.

  • Observed aurora forms
    • ;Veil;Rays;Band;Corona;Arc
Technical information

Pentax K-5 10 / 2.8 ISO800 / 1600 20-50 s. + OGps1 Astrotracer.

Comments: 2 pcs
Jaakko Kuivanen - 17.3.2015 at 23.39 Report this

Samoja tulia ihailin! Tasan kaksi vuotta sitten ajattelin ettei vastaavaa näytöstä ihan pian näillä leveysasteilla tulisi, mutta tulihan se oikein koko laidallisella! Silloin postissa ollut pallokalansilmä pääsi tänään töihin :)

Jorma Mäntylä - 18.3.2015 at 00.20 Report this

Palasin takaisin pihalle klo 22.40 aikaan ja meno oli vain parantunut. Vilkkua ja välkkyä etelätaivaalle asti, kuin disco-valot olisi laitettu Sahalahden taivaalle noin 23-23.30.
Kuvia tuli niin paljon, että teen myöhemmin sarjasta videon.

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