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

Ursa Astronomical Association

Sun - 29.8.2021 at 10.00 - 29.8.2021 at 12.00 Jämsä, Halli Observation number 100777

Visibility III / V

Raimo Hakala, Jyväskylän Sirius

Observation of sunspot group No. 2860 between clouds.

-Maxutov D 150 mm

-Astrosolar membrane

-Solar Continuum 10 nm (CWL 540nm)


Additional information
  • Observation target
    • Sun
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