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sunspot evolution 1 juillet 2021 lunette 120 mm halpha

andre cassese

lunette 120 mm Frehel F/D 8 , filtre de rejet Baader D ERF interne , étalon PST Prototype de 2004  optimisé sans bague de réglage, Barlow 2x , camera DMK 41 ( 7 images secondes ) et traitement astrosurface .


© andre cassese
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From the album:

Soleil Halpha lunette 120 mm et 80 mm

· 25 images
  • 25 images
  • 7 image comments

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a non-conventional post treatment for such a sun surface photography ( chromosphere) that reveals deep matter with 3D effects which makes this picture "one of a kind", with a lot of informations, and makes the surface "alive" like a storm in ocean.


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