Dear Collaborators,
Solar activity has dropped to a moderate level over the past
24 hours. The target region NOAA 14274 produced 16 flares,
with the largest ones being two M1.3 flares at 20:04 UT and
21:22 UT yesterday, respectively. It retains a beta-gamma-delta/E-type
sunspot group. Today, the Major Flare Watch shall continue on
14274, due to its prior >M5 flaring history and current high
productivity. Additional low-M flares are possible, with a chance
for an isolated >M5 flare in the coming days.
The position of NOAA 14274 on 15-Nov-2025 at 12:30 UT is:
N24W85 (882", 390")
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,
Qiao Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has returned to a high level, due to an X4.0 flare
at 07:44 UT today from the target region NOAA 14274. This
region was also the source of an M1.8 flare and several low-C
flares as it rotates towards the northwest limb. Today the Major
Flare Watch shall remain with 14274, because of the increased
probability of another above M5 flare within the following 24-48
hours.
The position of NOAA 14274 on 14-Nov-2025 at 12:30 UT is:
N24W71 (838", 379")
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,
Qiao Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has grown to an intermediate level in the past
24 hours. The largest event was a C6.1 flare at 02:43 UT
today from the target region NOAA 14274. This region also
produced six low-C flares, with a beta-gamma-delta/E-type
sunspot group. Today, the Major Flare Watch will continue as
14274 for a further day, due to its high magnetic complexity
and large spot area of 1000μh. Note that NOAA 14276
(S17W22, beta-gamma/C-type) was also the source of five
low-C flares in the period. C-class activity is expected, with
an >M5 flare possible in the coming 1-2 days.
The position of NOAA 14274 on 13-Nov-2025 at 12:30 UT is:
N24W58 (752", 369")
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,
Qiao Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has dropped to a low level since the last message.
The target region NOAA 14274 was the source of seven low-C
flares, with the largest being a C4.2 flare at 16:51 UT yesterday.
This region retains a beta-gamma-delta/E-type magnetic
configuration and has increased in spot area to 1100 μh. Today,
the Major Flare Watch will remain on NOAA 14274. More C-class
flares are expected, with a chance for an isolated >M5 flare in the
coming days.
The position of NOAA 14274 on 12-Nov-2025 at 08:30 UT is:
N24W42 (594", 358")
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,
Qiao Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has increased over the last 24 hours. The target
region NOAA 14274 produced the largest event being an X5.2
flare at 09:49 UT today and numerous C- and M-class flares.
Today the Major Flare Watch shall remain in effect with 14274,
due to the increased possibility of another >M5 flare in the next
24-48 hours.
The position of NOAA 14274 on 11-Nov-2025 at 12:30 UT is:
N24W31 (457", 351")
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,
Qiao Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has remained at a high level since the last
message. The largest event was an X1.2 flare at 08:55 UT
today, produced by the target region NOAA 14272. This
region retains a beta-gamma-delta/E-type sunspot group,
increasing in its sunspot area and number. Today the Major
Flare Watch campaign will continue as this region, with a
chance for another >M5 flare in the following days.
The position of NOAA 14274 on 10-Nov-2025 at 12:30 UT is:
N25W18 (272", 360")
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,
Qiao Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has increased significantly over the past 12 hours.
The target region NOAA 14274 produced an X1.8 flare at 07:01 UT
today plus three low C-class flares. At this time, we will continue
the Major Flare Watch campaign for one more day. Additional major
flare of above M5.0 will be likely in the next few days.
The position of NOAA 14274 on November 9 at 12:30 UT is:
N24W05 (77", 341")
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,
Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity has decreased to a low level. The largest
event over the past 24 hours was a C4.8 flare at 01:08 UT
on November 8 produced by NOAA 14277 (S07E34) that
had a beta/D-type configuration. 14277 also produced three
~C2 flares. The target region NOAA 14274 was the source
of ten low C-class flares (the largest one being a C3.8). It
remains a beta-gamma-delta/E-type configuration but
increases in the sunspot area. The Major Flare Watch
campaign will continue for a final 24 hours on this region.
C-class activity is expected with some chance of a flare
above M5.0 in the next 24 hours.
The position of NOAA 14274 on November 9 at 00:30 UT is:
N24E01 (-15", 339")
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,
Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity was at a moderate level. The largest event
over the past 24 hours was an M1.8 flare at 06:31 UT on
November 7 produced by the target region NOAA 14274.
14274 was also the source of more than ten C-class flares.
It remains a beta-gamma-delta/E-type configuration. Today
we will continue the Major Flare Watch on this region for a
further 24 hours. Please note that another region NOAA 14276
(S17E53, beta-gamma/D-type) as mentioned yesterday was
also the source of a few C-class flares. Low M-class activity
is expected with some chance of a major flare of above M5.0
in the following 1-2 days.
The position of NOAA 14274 on November 8 at 00:30 UT is:
N24E12 (-184", 339")
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,
Ying Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity decreased in the past 24 hours. The largest event
over the period was an M1.1 flare at 04:17 UT on November 6,
produced by a southeast limb region, now numbered as NOAA
14276 (S17E67). 14276 also produced about six C-class flares
including a C9.4 at 19:48 UT. It was designated as a beta-gamma/
D-type region. The target region NOAA 14274 only produced seven
C-class flares, with the largest one being a C5.3. 14274 remains
a beta-gamma-delta/E-type configuration but increases in the
sunspot area. Today we will continue the Major Flare Watch campaign
on this region. A major flare of above M5.0 is still possible in the
next 1-2 days.
The position of NOAA 14274 on November 7 at 00:30 UT is:
N24E26 (-389", 342")
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,
Ying Li (Purple Mountain Observatory)