North-South Asymmetry
Taken by Eduardo Schaberger Poupeau on December 19, 2021 @
Rafaela, Santa Fe, Argentina
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Details:
Solar cycles have several peculiarities, such as that sunspots at the beginning of a new cycle appear at high latitudes so that later, when the solar cycle is reaching its maximum activity, these spots converge towards the equator.
But solar cycles also tend to present an asymmetry between the activity of its two hemispheres. In the first half of this year, the number of active regions containing sunspots was very similar, but in this second half, the number of active regions in the southern hemisphere was 28% higher than those that appeared in the northern hemisphere.
In this photograph that I took this Sunday, December 19, you can see 5 active regions in the southern hemisphere and only 2 in the north. This will be the definitive trend of this solar cycle number 25?
To take this picture I used a Coronado Solarmax II 90mm aperture solar telescope and a ZWO 183MM camera.
Photographer's website:
No URL provided.
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