Dear Collaborators,
Solar activity has been at a low-to-moderate level since the last message. Yesterday’s target region, NOAA 14048 (S16W74), currently approaching the southwest limb, was flare‑quiet during that period. NOAA 14055 (N08W29) produced four C-class flares in the period, including the largest —a C9.0 flare at 17:22 UT yesterday. This region has developed into a beta‑gamma configuration with increases in both its spot area and number. Today, the target shall switch to NOAA 14055 due to its continued flux emergence. Furthermore, the northeast limb region (N05E75), mentioned in yesterday’s message, produced three C‑class flares, the largest being a C5.3 at 07:41 UT today. Further C‑class activity is expected, with a chance of low M‑class flares in the next 24 hours.
The position of NOAA 14055 on 10-Apr-2025 at 11:30 UT is:
N08W29 (461",219")
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)