Contact information

Skywarden,
Ursa Astronomical Association
Kopernikuksentie 1
00130 Helsinki
taivaanvahti(at)ursa.fi

Ursa Astronomical Association

Sun - 1.4.2021 at 12.41 Espoo Observation number 97355

Visibility II / V

Tommi Ropponen, Ursa (Etelä-Suomi)

I leave this in the archive: At the time of shooting, the disc was virtually dotted. There is almost nothing to bring in the white light. H-alpha, on the other hand, would have offered whatever.


Additional information
  • Observation target
    • Sun
    • Heikosti näkyvä
  • Seeing
    • Average
Technical information

Sony A7iii / SEL TC20 / SEL200600G / Baader AstroSolar membrane. Scopetech Mount Zero / Leofoto LS-364C. 1/400 s, iso 250, f / 18. 982 raw images taken with serial fire using an electric shutter. The best 25% of the images in the processed stack. Processing includes Lightroom, Pipp, Autostakkert3, ImPPG and colors in Photoshop.

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