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Ursa Astronomical Association
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Ursa Astronomical Association

Sun - 21.5.2017 at 14.56 Espoo Observation number 64101

Visibility III / V

Tommi Ropponen, Ursa (Etelä-Suomi)

The sun seemed to be a very active area that I tried to describe through thin clouds. In the animation, this is reflected in an unfortunate change in brightness.

Seeing was worse than the last time, sometimes the picture was "just a whiff".

The animations have 5 frames in each and the animation shows a period of 57 min.

Additional information
  • Observation target
    • Sun
    • Keskitaso
  • Seeing
    • Mediocre
Technical information

Baader D-ERF, TS 80/480 APO, Daystar Quark, 0.5x shortener, 30 mm offset and ASI178MM. Top 5% stacked on 5,000 squares. Description SharpCap 2.9, stacking AutoStakkert3 !, processing with ImPPG and Photoshop.

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