Polarities in Sunspots AR4478 and 4479
Taken by Peter Rosén on June 29, 2026 @
Central Stockholm, Sweden
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Date Taken: 2026:06:30 10:39:07
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Details:
Yesterday I photographed the Sun in Ha (2nd image)and white light (3rd image).
Today, as the animations from SDO were up, I picked a synchronous still image from the "HMIBC" video color coded to illustrate blue and green as a positive polarity and red and yellow as a negative one.
I overlayed this colorimage over my image taken in Ha at 656.28 nm.
It clearily illustrates how the leading sunspot in AR4479 on the northern hemisphere is positive while it is inverted for AR4478 on the southern hemisphere.
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