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Ursa Astronomical Association
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00130 Helsinki

Ursa Astronomical Association

Sun - 7.2.2018 at 15.40 Järvenpää Observation number 95583

Visibility Unclassified

Keijo Toikkanen, Keski-Uudenmaan Altair

An eruption observed in the sun at about 3:40 p.m. The rating is C8.1. The source was sunspot AR2699.

Additional information
  • Observation target
    • Sun
    • Luokittelematon
  • Sunspot number
    • 17
Technical information

Solar storm radio telescope, circumferential antenna diameter 60 cm

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