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

Ursa Astronomical Association

Negative observation of missing night shining clouds - 30.7.2021 at 01.45 - 30.7.2021 at 02.20 Turku Observation number 100157

Visibility Unclassified

Juha Ojanperä, Porin Karhunvartijat

Negative night cloud observation at night on 30/31.7.2021. A clear, almost completely unobstructed horizon. No night clouds were visible at the time of the observation.


Additional information
  • Havainto
    • Negative observation of missing night shining clouds
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