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Dear Collaborators,
Solar activity has decreased since the last message. The largest event was a C5.0 flare at 15:40 UT on 25-Aug-2023 from NOAA 13405. This region has been classified as a beta/C-type sunspot group, increasing in magnetic complexity. It also produced a low-C flare plus two B-class flares and continued to be the most flare-productive region. Today the target region shall switch to NOAA 13405. Yesterday’s target (NOAA 13415) was flare quiet although it was classified as a beta-delta/D-type. In addition, NOAA 13413 (beta/D-type, N11E09) and NOAA 13416 (alpha/H-type, S19E64) were also the sources of a few low-C and B-class flares. Additional C-class activities are expected from various regions in the next 24 hours with a slight chance of a low M-class flare. The position of NOAA 13405 on 26-Aug-2023 at 11:30 UT N10W82 (926", 147") See http://www.SolarMonitor.org for images and http://solar.physics.montana.edu/max_millennium/ops/observing.shtml for a description of the current Max Millennium Observing Plan. Regards, Qiao Li (Purple Mountain Observatory)
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