Sprawling Sunspot AR2671

Sprawling sunspot AR2671
Taken by Bernard Durand on August 18, 2017 @ Hautes-Alpes, France

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Camera Used: Unavailable Unavailable
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Aperture: Unavailable
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Date Taken: 2017:08:18 20:02:56

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Details:

This group is becoming gigantic. C11 @ f/10, Astrosolar 3.8 + Continuum + L filters. Basler 1920-155um video camera. Processing AS!3 + CS5.

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