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X-flare-aganza!
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Solar activity briefly increased with the emergence of a large active region, AR 12673. This region released several X-flares in the last few days causing radio blackouts and geomagnetic storms. On 10 September, while the region was on the west limb, it released a powerful X8.2 flare. Although solar activity is decreasing due to the 11-year solar cycle, the cycles largest flares usually occur during the decline phase.
To view all of the recent X-flare data visit the XRT Level0 Data Mpeg Movie Archive.
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(Prepared by Chunming Zhu)
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