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Contact information

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

Ursa Astronomical Association

Sun - 8.9.2021 at 15.50 Jyväskylä Observation number 101070

Visibility IV / V

Petri Tikkanen, Jyväskylän Sirius

Sunspots 8.9.2021 Telescope Unistellar eVscope + Astrosolar filter and NPB, which I could not separately remove for this image. Combined from two images with Photoshop and color and contrast adjustment with Lightroom.


Additional information
  • Observation target
    • Sun
  • Seeing
    • Average
  • Sunspot number
    • 58
Technical information

Unistellar eVscope Baader Astrosolar filter NPB filter

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