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

Ursa Astronomical Association

Sun - 29.3.2022 at 14.00 Harjavalta Observation number 105807

Visibility III / V

Jari Kuula, Porin Karhunvartijat

The sun showed up, so the refractor in the yard cooled down. Guys have said that spot activity is on the rise, finally! Wanha Evostar works well with Baader's Herschel wedge, filming on a mobile phone was a problem. The monk's hood trick recommended by Heikkilä Risto works here too. I photographed the spectrum through a DIY gadget (cardboard, razor blade. DVD), the lines in the original image stood out. The green color is created by the wedge filters.


Additional information
  • Observation target
    • Sun
  • Seeing
    • Average
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