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

Ursa Astronomical Association

Half-sky auroras - 14.1.2022 at 21.10 - 14.1.2022 at 22.10 Pieksämäki Observation number 103922

Visibility IV / V

Timo Kantola, Ursa (Itä-Suomi)

The fireball camera grabbed the dunes, I compiled the images into a giff. The dunes were visible from 21:13 to 22:08. Seen from Pieksämäki, it is quite close to the west, at its best at 30 degrees.

Edit, there was a wrong entry in the direction of the faulty image, now it should be ok.



More similar observations
Additional information
  • Observed aurora forms
    • Dunes info

      Dunes

      The dunes are a dim and very rare shape that has so far been associated with the aurora visible in early evening.

      Aurora dunes can be most easily confused to ribbons on lower clouds. In order to fill in the description of the phenomenon, a striped pattern formed by parallel lines must also appear in the aurora. The stripes are most easily recognizable right at the front edge of the aurora but they may also occur among the rest of the aurora.

      The dune auroras are visible as a parallel striped float. Photo by Tapio Terenius

      Raidallisen dyynilautan reunassa voi toisinaan olla voimakastakin aaltoilua.

      There can sometimes be strong ripples at the edge of a striped dune float. The rippling of the edge of the dune float can vary from minor to large (pictured). Photo by Pirjo Koski

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