Dear Collaborators,
Solar activity has decreased to a moderate-to-low level since the last
message. The largest event during the period was an M2.9 flare at
15:36 UT yesterday, produced by a northeast limb region (N19E89).
The target region, NOAA 14294, produced more than ten C-class
flares and two M1.4 flares during the period. Today, we will continue
the Major Flare Watch campaign on this region because of its flare
history and relatively large sunspot area (~800 μh). A major flare of
above M5.0 is still possible in the next 1-2 days.
The position of NOAA 14294 on 30-November-2025 at 08:30 UT is:
S16E59, (-803",-276")
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)
Dear Collaborators,
Solar activity has increased to a moderate level since the last message.
The largest event in the period was an M5.9 flare at 22:11 UT yesterday,
produced by the limb target region, now numbered as NOAA 14294
(S16E71, see the SSW Latest Events entry
<https://www.lmsal.com/solarsoft/latest_events/#High_Velocity_Eruptive_M5.9_…>).
NOAA 14294 was the most
flare-productive region on the visible disk during the period, producing
more than ten C-class and three low M-class flares. At this time, we are
implementing the Major Flare Watch campaign on NOAA 14294. Additional
major flares of above M5.0 are likely over the next few days.
The position of NOAA 14294 on 29-November-2025 at 12:30 UT is:
S16E71, (-884",-274")
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)
Dear Collaborators,
Solar activity has increased since the last message. Yesterday’s target
NOAA 14291 (S14W08) was flare-quiet during the period, although it
has developed into a beta-delta magnetic configuration. The largest
events in the period were two C5.1 flares from a southeast limb region
(unnumbered yet), which also produced more than ten additional low
C-class flares. Today we will switch the target to this limb region.
Further
C-class and low M-class activity is expected.
The approximate position of the target on November 28 at 12:30 UT is:
S14E89, (-943",-235")
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)
Dear Collaborators,
Solar activity remains at a low level. Target region NOAA 14291
(S14E05, beta–gamma/E-type) has produced several low C-class
flares since the last message, the largest being a C2.7 flare at
00:35 UT today. Most of these flares originated from its trailing
portion. NOAA 14291 will remain the target region for the next
24 hours, with continued attention to its trailing spots, which are
showing signs of flux emergence and dynamic movement. Further
C-class activity is expected.
The position of NOAA 14291 on 27-November-2025 at 12:30 UT is:
S14E05, (-82",-258")
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)
Dear Collaborators,
Solar activity has increased slightly since the last message. The largest
event during the period was a C2.2 flare at 02:48 UT today from the
target region NOAA 14291 (S13E18). This region retains a beta–gamma
configuration and produced four additional C1–C2 flares during the period.
NOAA 14291 will remain the target region for the next 24 hours, with
particular attention on its trailing spots, which are showing signs of
strong
shearing and further flux emergence. NOAA 14292 (S16W41, beta/D-type)
was also the source of several C1–C2 flares in the period, including a C2.1
flare. Further C-class activity is expected.
The position of NOAA 14291 on 26-November-2025 at 12:30 UT is:
S13E18, (-293",-242")
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)
Dear Collaborators,
Solar activity remains at a low level. The largest event since the last
message was a C1.6 flare at 21:46 UT yesterday from the target region
NOAA 14291 (S16E30). This region has further evolved into a beta-
gamma configuration and produced an additional C1.3 flare during the
period. NOAA 14291 will remain the target region for the next 24 hours.
Further C-class activity is expected.
The position of NOAA 14291 on 25-November-2025 at 12:30 UT is:
S16E30, (-468",-291")
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)
Dear Collaborators,
The level of solar activity has remained low since the last message.
Several low C-class flares were produced by NOAA 14290 (S10E38,
beta/C-type) and the target region NOAA 14291 (S13E47, beta/E-type),
including the two largest events in the period (both C2.5), produced
by these two regions, respectively. NOAA 14291 will remain the target
region for the next 24 hours, with further C-class activity expected.
If possible, please also include NOAA 14290 in your field of view.
The position of NOAA 14291 on 24-November-2025 at 12:30 UT is:
S13E47, (-694",-238")
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)
Dear Collaborators,
Solar activity continues at a low level. Several flares previously assigned
to NOAA 14290 have been reassigned to a closely adjacent active region now
numbered NOAA 14291. This region is classified as a beta-type region with
notable emerging flux. NOAA 14291 produced multiple flares since the last
message, including a C6.3 at 18:49 UT yesterday. NOAA 14291 will be the
target region for the next 24 hours. Further C-class activity is expected.
The position of NOAA 14291 on 23-November-2025 at 12:30 UT
S14E58, (-800", -251")
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,
Harry Greatorex (Queen's University Belfast)
Dear Collaborators,
Solar activity remains at a low level. Newly numbered active region NOAA
14290 in proximity to the southeastern limb has been the site of multiple
flares since the last message. The largest flare of the last 24 hours was a
C4.8 from NOAA 14290 at 11:41 UT today. This region is classified as a
beta-type region, shows signs of emerging flux, and is likely to produce
further activity in the next 24 hours. The target region will switch to
NOAA 14290, with further C-class activity expected.
The position of NOAA 14290 on 22-November-2025 at 12:30 UT
S10E67, (-881", -181")
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,
Harry Greatorex (Queen's University Belfast)
Dear Collaborators,
Solar activity continues at a low level. A number of low C-class flares
were produced in the last 24 hours, the largest being an occulted C1.4 from
an unnumbered active region beyond the southeastern limb at 05:28 UT today.
The target region is now numbered as NOAA 14288. This region is currently
classified as an alpha-type region, however this is expected to change as
the region moves further onto the disk. NOAA 14288 will continue as the
target region, with further C-class activity expected over the next 24
hours.
The position of NOAA 14288 on 21-November-2025 at 12:30 UT
N16E68, (-867", 287")
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,
Harry Greatorex (Queen's University Belfast)