Contact information

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

Ursa Astronomical Association

One halo form - 9.3.2023 at 09.09 Helsinki Observation number 113208

Visibility I / V


Short-term 22r over the Helsinki Seaport.


Additional information
  • The halo was caused by lightsource:
    • Sunlight
  • Where are the ice crystals of the halo located?
    • Upper clouds
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