Contains:  Solar system body or event
9 6 21 Sun in Continuum AR 2863, 2864, 2866, 2868, Alan

9 6 21 Sun in Continuum AR 2863, 2864, 2866, 2868

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Description

I stacked 50 images.  
Processed in AS3, IMPPG, PS (high pass filter, 3 px blended at 60%; crop)
I tried to preserve umbral details.

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Histogram

9 6 21 Sun in Continuum AR 2863, 2864, 2866, 2868, Alan

In these public groups

Cloudy Nights