September 14, 2021 on 9:00 am | In Sun | Comments Off

Cloudy days are good for additional work.  So I made a combo image showing the morphology of the two last great regions AR2866 and AR2868 on 7 days, between September 4 and September 13th.  Seven images show the morphology around the 540nm wavelength, 6 Ha images around the Ha line and 5 images around the CaK wavelength.  Each day is indicated on the image as well as the classification of the two areas for that specific day.

2021-09-04-13-ThRmk-540nm-AR2866-68-MorpCombo.jpg

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