Sunspot & Prominence
Taken by Alessandro Bianconi on September 9, 2017 @ Dolianova (CA) - Italy
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  Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
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Date Taken: 2017:09:09 22:56:35
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Refractor Truss Tube 228mm F8 + Daystar Quark Chromosphere Version & ASI174MM (for halfa image)
FL = 7800mm

For white light images I used a Baader Cool Ceramic Herschel wedge + Continuum filter + IR/UV Cut + Barlow 3X (FL = 5500mm)
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