Dear Collaborators,
Solar activity is at a low level. NOAA 12891 has continued to decay since the last message, and was reclassified as a beta-delta/C-type sunspot group. Although the delta is small, NOAA 12891 produced the largest flare of the period (a C1.6 on 5-Nov-2021 at 15:21 UT). The target region has rotated onto the visible disk to display a mature leading polarity spot and no trailing polarity spots so far, but it has not yet been designated a NOAA number. This region appears to have a beta/H-type sunspot classification and has been the source of many B-class flares since the last message (the largest being a B9.5 on 5-Nov-2021 at 15:50 UT). This currently unnumbered region remains as the target region because of NOAA 12891's decay. Further B-class activity is expected over the next 24 hours, with a chance for a C-class flare.
The approximate position of this region on 5-Nov-2021 at 20:00 UT is:
S27E69 , ( -806", -460" )
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,
Shaun Bloomfield (Northumbria University)
mmmotd@solar.physics.montana.edu