Dear Collaborators,

Solar activity has reached a moderate level. The largest event since the last message was a M1.5 flare at 00:56 UT today from NOAA 13415. This region was still classified as a beta/D-type configuration and emerged a new sunspot. Today the target region shall switch to NOAA 13415. Yesterday’s target (NOAA 13413) has been quiescent over the period. Please note that NOAA 13405 (alpha/H-type, N09W68) and NOAA 13403 (N29W86) also produced several low-C and B-class flares. More C-class activities are expected from various regions in the next 24 hours with a slight chance of another low M-class flare.

The position of NOAA 13415 on 25-Aug-2023 at 11:30 UT

S09E42 (-629", -233")

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)