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Scientists say the corona hole begins to appear when the sun rotates. NASA’s Solar Dynamics Observatory calls coronal holes fairly common, but they usually emerge toward the sun’s poles, where wind is spewed outward. outer space . ”But as the sun prepares to reach its peak of activity, which occurs every 11 years, being at the equator means we’re guaranteed to see strong winds on Earth days after it’s whirled past the central meridian,” said Mathew Owens, a professor of space physics at the University. of Reading to Insider Wednesday (29/3/2023).
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The above photo of the coronal hole was taken by the Solar Dynamics Observatory NASA on November 8th, and just released 12 days later. So, what causes the appearance of this giant hole? In the caption of the photo, NASA explains that a large hole can open in the sun’s upper atmosphere, or called the corona, due to the star’s dynamic magnetic field. For details, see the infographic