Contact information

Taivaanvahti,
Astronomical association Ursa
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Astronomical association Ursa

Kuva hienosta ukkospilvestä - 4.7.2017 klo 15.05 Alavieska Observation number 65000

Visibility III / V

Pyörivä nousuvirtaus Alavieskan ja Kalajoen rajalta 


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