Dear Collaborators,
Solar activity has reached a moderate level over the last 24 hours. Yesterday’s target NOAA 14203 (beta/D-type, N12W91) produced four ~M1 flares, with the largest being an M1.5 flare at 20:30 UT yesterday, but it has almost rotated beyond the west limb. NOAA 14197 has become the most active region on the disk during the period and produced an M1.1 flare at 14:11 UT yesterday. It retains a beta-gamma/E-type sunspot group, with additional spots emerging. Today, the target shall switch back to 14197 from 14203. Further C-class activity is expected, with a chance for another low-M flare in the coming 24 hours.
The position of NOAA 14197 on 29-Aug-2025 at 11:30 UT is:
S17E09 (-142", -388")
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)
mmmotd@solar.physics.montana.edu