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Ursa Astronomical Association
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Ursa Astronomical Association

Several bright halo forms - 31.10.2017 at 22.15 - 31.10.2017 at 23.45 Enontekiö Observation number 67940

Visibility III / V

Last night, the northern lights hunt became a halo hunt. The cold weather (-22C) apparently got the ice crystals moving. I set off to drive from Heta into the darkness and first saw the familiar 22-ring through the fog. The 46-ring was really poorly visible and at the top was partly the arc of the zenith environment. I continued looking for a clear sky and it also came against me. It had a very different combination of moonshine. If I realize right, it shows the side moons, a 22 ° overhanging arc, and a partial horizon ring.

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Additional information
  • The halo was caused by lightsource:
    • Moonlight
  • Where are the ice crystals of the halo located?
    • Ice crystals
  • Yleiset halomuodot (kuunvalo)
    • 46° rengas
    • Horisonttirengas
    • Zeniitinympäristön kaari
    • 22° ylläsivuava kaari
    • Sivuaurinko
    • Auringonpilari
    • 22° rengas
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