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Ursa Astronomical Association
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Ursa Astronomical Association

Sun - 6.7.2014 at 16.50 Järvenpää Observation number 27227

Visibility IV / V

Toni Veikkolainen, Keski-Uudenmaan Altair

It had been largely the second month since I had last photographed the Sun in near ultraviolet light, but I could hardly have imagined a better day to fix the situation. The weather conditions were top notch and the abundance of spots did not give cause for complaint. No doubt there was activity at other wavelengths as well, and I am no wonder that the radio telescopes detected riots the very next day.

Additional information
  • Observation target
    • Sun
    • Näyttävä
  • Sunspot number
    • 165
  • Seeing
    • Excellent
Technical information

QHY 5-II + William Optics Megrez 90/621, 0.8x reducer, Baader K-Line filter, stacked on video with Autostakkert

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