Massive hole in the Sun

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A massive hole that has appeared on the Sun is known as a coronal hole. Contrary to what the term might suggest, coronal holes are not literal holes in the Sun. They are regions of the Sun's corona that are cooler, less dense, and have open, unipolar magnetic fields. This structure allows solar wind to escape more readily into space, resulting in streams of relatively fast solar wind2811. The recent coronal hole that has formed on the Sun is particularly large, with a width of nearly 497,000 miles, equivalent to over 60 Earths laid side by side45. This hole emerged near the Sun's equator on December 2, 2023, and has been facing Earth directly since December 4, 202345. Coronal holes can cause geomagnetic storms on Earth, which can lead to phenomena like auroras, as well as potential disruptions to satellite communications and power grids369. However, the solar wind from this particular coronal hole has been less intense than expected, resulting in a weak geomagnetic storm5. Coronal holes are more common and persistent during the years around solar minimum, but they can develop at any time and location on the Sun2. The current hole is particularly notable because it occurs as the Sun approaches the peak of its 11-year activity cycle, known as the solar maximum, anticipated to climax in 20244. It's important to note that while the term "hole" might sound alarming, coronal holes are a normal part of the Sun's activity and pose no significant threat to Earth45.
what is a coronal hole and how does it form
how do coronal holes affect earth's atmosphere
what is the difference between a coronal hole and a sunspot
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