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Ursa Astronomical Association
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00130 Helsinki

Ursa Astronomical Association

Sun - 1.10.2015 at 12.30 Järvenpää Observation number 43293

Visibility Unclassified

Keijo Toikkanen, Keski-Uudenmaan Altair

Two riots observed in the Sun, at about 12:30 and 16:10. The intensities were C7.7 and M4.5. Both were from the sunspot group AR2422.

Additional information
  • Observation target
    • Sun
    • Luokittelematon
Technical information

Solar storm radio telescope "Sampo", circumferential antenna diameter 60 cm.

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