Dear Collaborators,

Solar activity has remained at low levels since the last message. Yesterday's target region, NOAA 14530 (N19W56, beta/D-type), produced four B-class flares, including a B9.7 at 23:19 UT yesterday, but its sunspots appear to be decaying. The largest event during the period was a C5.8 flare at 17:09 UT yesterday, attributed to NOAA 14521 (N09W91, alpha/H-type), which is now just beyond the west limb. NOAA 14529 (N12W25, beta/C-type) is showing clear signs of magnetic flux emergence around its leading sunspot. Today, the target region will switch to NOAA 14529. C-class activity remains possible in the next 24 hours.

The position of NOAA 14529 on September 13 at 11:30 UT is:

N12W25 (395", 90")

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,

De-Chao Song (Purple Mountain Observatory)