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Ursa Astronomical Association
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00130 Helsinki

Ursa Astronomical Association

Sun - 28.8.2021 at 08.00 - 28.8.2021 at 11.00 Hankasalmi, Murtoinen Observation number 100766

Visibility III / V

Arto Oksanen, Jyväskylän Sirius

The first flare observation of the season with the Hankasalmi radio telescope. There were several eruptions in the sun. Of these, 5:09 UT and 6:23 UT were clearly visible. X-ray classifications C7.0 and M4.7. Comma group 2860.

Additional information
  • Observation target
    • Sun
Technical information

3 m alt-az radio telescope with 10-11 GHz microwave head and diode receiver. Sampling frequency 100 Hz.

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