Dear Collaborators,

Solar activity continues at a moderate level. NOAA 13753 (beta/C-type, N15W69) showed signs of decay and produced an M3.2 flare at 08:13 UT today as it rotated to the North West limb. NOAA 13751 has now developed into a beta-gamma-delta/E-type region and has been the most magnetically complex one on the disk, with an area of 400 MSH. 13751 shows signs of mixed polarity within its leading and intermediate portions. Today the Major Flare Watch region will switch back to NOAA 13751. Yesterday’s target NOAA 13738 has rotated out of Earth-view. More low-M activity is probable with a chance of a >M5 flare in the coming days.

The position of NOAA 13751 at 11:30 UT on 19-Jul-2024 is:

S08E07 (-114", -208")

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)