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Summary: Sunspot group 9313
unleashed two solar
flares
on Saturday, Jan. 20th: an M1-class explosion at 1830 UT
followed by a powerful M8-class flare three hours
later. At about the same time SOHO coronagraphs spotted a pair of bright
coronal mass ejections (CMEs) with faint halo components. The CMEs hit Earth's
magnetosphere on Jan23rd at 1030 UT, but they did not trigger
mid-latitude aurora. Submit your images.
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