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Credit andre cassese

Sunspot 30 juin 2021 Lunette 120 mm Halpha

andre cassese

By andre cassese

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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 .

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andre cassese
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From the album:

Soleil Halpha lunette 120 mm et 80 mm

· 25 images
  • 25 images
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  • 7 image comments
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Kari A. Kuure

Really great pictures. There is a strong contrast in the images that I have not normally seen used in these types of images. But it fits well with these and clearly highlights how intense the phenomenon of sunspots is. Thanks for sharing these photos.

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