Dear Collaborators,
Solar activity is at a low level. The largest event was a C4.7 flare at 05:35 UT today produced by a South East limb region (unnumbered yet, S21E86). Target region NOAA 13445 produced two low-to-mid flares (C4.3 and C3.2) in the period. This region has increased slightly in number of spots since the last message, but has decreased in magnetic classification to be a beta-gamma/D-type sunspot group. NOAA 13445 will remain the target region for a further 24 hours. Please note that a newly-numbered NOAA region 13449 (N15E40, beta-gamma/C-type) also produced four low C-class flares in the period. Additional C-class flares are expected over the following 24-hour period, with a slight chance of low M-class activities.
The position of NOAA 13445 on 27-Sep-2023 at 11:30 UT is:
S13W30 (467" , -311")
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)