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08 february 2026, 17:30 мск

Active solar region 4366 has broken the 21st century record for the number of strong flares.

Active region 4366 and solar flare chart
Active region 4366 and solar flare chart

The NOAA catalog has just been updated. Active center 4366, currently visible from Earth, has been credited with three M-category flares. This means it now has 66 events.

The previous catalog record belonged to region 3664, which recorded 64 strong M-category flares and higher. It also recorded the largest magnetic storm in 20 years.

Before the record was updated, there was a dramatic pause of almost three days, during which the sunspot group virtually ceased producing flares. Frankly, it seemed like the end was near.

Thanks to all the fans ))

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Laboratory of Solar Astronomy,SRI RAS

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