flashes in the center of AR 2995
Taken by ralf burkart on April 26, 2022 @
Kempen, Germany
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Camera Used: Unavailable Unavailable
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Details:
The umbra of AR2995 was stretched and sharpened to show these very short-lived light phenomena. The gif consists of 54 images, each image was created from a 5s avi. So the total duration is only 4.5 min.
I would really like to know what is happening there. Are these primary acoustic waves and the dark slower waves in the penumbra are the secondary acoustic waves?
Photographer's website:
https://astrofotografie.ralf-kreuels.de/die-sonne
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