Dear Collaborators,
Solar activity has dropped to a low level. An unnumbered
region near the southeast limb (S05E80) produced the
largest event, a C1.9 flare at 18:42 UT yesterday, and a
C1.0 flare. NOAA 14464 produced a C1.8 flare at 02:00 UT
today and two ~C1 flares. This region has been classified
as a beta/D-type sunspot group. Yesterday’s target, NOAA
14465 (beta/C-type, N09E07), only produced a C1.4 flare.
Today, the target will switch from 14465 to 14464. Additional
low-C flares are probable over the following 24 hours.
The position of NOAA 14464 on 13-Jun-2026 at 11:30 UT is:
S13W36 (542", -223")
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 an intermediate level. The
target region NOAA 14465 produced two ~C1 flares, with
the largest being a C5.2 flare at 02:04 UT today. Although
this region retains a beta-gamma/D-type classification, it
has begun to show magnetic signs of fragmentation and
decay. Today, the target will remain with 14465, considering
its magnetic complexity and prior flaring history. Note that
an unnumbered region (S09E89) was also the source of
three ~C1 flares. More low-C flares are expected over the
next 24 hours.
The position of NOAA 14465 on 12-Jun-2026 at 11:30 UT is:
N09E23 (-365", 138")
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 reached an intermediate level in the past
24 hours. The largest event was a C9.0 flare at 08:22 UT
today from the target region NOAA 14465. This region has
retained its high productivity and a beta-gamma/D-type
magnetic configuration, with a further emergence of new
spots. Today, the target will continue on 14465. In addition,
NOAA 14456 (beta/E-type, N18W91) also produced six
~B8-C6 flares before it completely rotated out of Earth-view.
Further C-class flares are expected with a chance for an
isolated low-M flare in the following 24 hours.
The position of NOAA 14465 on 11-Jun-2026 at 11:30 UT is:
N09E33 (-510",140")
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 low level. The target region
NOAA 14465 produced four low-C flares, with the largest
magnitude being a C2.6 at 00:51 UT today. This region has
increased in magnetic complexity to a beta-gamma/D-type,
with its further development. Today, the target should remain
at 14465. Note that a newly-emerged region, NOAA 14466
(beta/B-type, N06W23), also produced three ~C1-C2 flares.
Additional C-class flares are expected in the coming 24 hours.
The position of NOAA 14465 on 10-Jun-2026 at 11:30 UT is:
N09E47 (-684", 143")
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 has remained highly productive, producing ten
low-C flares, the largest of which was a C4.5 at 04:16 UT today.
This region has been designated as 14465 and classified as a
beta/D-type sunspot group, displaying separation of its main spots
as well as the emergence of new spots. Today, NOAA 14465 shall
continue to be the target. More C-class flares are expected in the
following 24 hours.
The position of NOAA 14465 on 9-Jun-2026 at 11:30 UT is:
N11E63 (-827", 178")
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 reached an intermediate level. The largest event
was a C7.2 flare at 02:36 UT today from an unnumbered region
near the northeast limb. This region also produced seven low-C
flares and became the most productive. Today, this limb region
should become the new target. Yesterday’s target, NOAA 14456
has been flare-quiet in this period. Further C-class activity is
expected in the next 24 hours.
The approximate position of the target on 8-Jun-2026 at 11:30 UT is:
N09E84 (-900", 150")
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 low level since the last message.
The largest event during the period was a C3.3 flare at 04:10 UT
today from the target region NOAA 14456 (N18W41), which also
produced seven low C-class flares in the period. 14456 has developed
into a beta-gamma-delta magnetic configuration and continues to
show significant magnetic flux emergence. Today, the target region
will remain NOAA 14456. Further C-class activity is expected, with
a chance of low M-class activity in the next 24 hours.
The position of NOAA 14456 on 7-Jun-2026 at 11:30 UT is:
N18W41, (591", 292")
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 during the period was an M1.9 flare at 13:40 UT today
from NOAA 14461 (S21E24, beta/C-type), but its sunspot area remains
very small (20 uh). Yesterday's target region, NOAA 14455, produced
only two C-class flares during this period, with the larger being a C4.1.
NOAA 14456 (N18W28, beta-gamma/C-type) produced several C-class
flares in the period, including a C8.8. Today, the target region will
switch
to NOAA 14456, as it is showing significant magnetic flux emergence.
Further C-class activity is expected, with a chance of additional low
M-class activity in the next 24 hours.
The position of NOAA 14456 on 6-Jun-2026 at 11:30 UT is:
N18W28, (423", 293")
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 decreased to a low level since the last message.
The largest event during the period was a C2.1 flare at 20:11 UT
on 4-Jun from NOAA 14458 (S05W28). The target region NOAA
14455 (N15W41) produced only one C1.5 flare during the period
and has decreased in complexity to a beta-gamma magnetic
configuration. NOAA 14457 (S09W79, beta/C-type) also produced
four low C-class flares in the period. Today, we will end the Major
Flare Watch campaign and continue to watch NOAA 14455 as the
default target region due to its recent flare history. Further C-class
activity is expected, with a chance of an isolated low M-class flare
in the next 24 hours.
The position of NOAA 14455 on 5-Jun-2026 at 11:30 UT is:
N15W41, (600",247")
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 remained at a high level since the last message.
The largest event during the period was an X1.0 flare
<https://www.lmsal.com/solarsoft/latest_events/#X1.1_AR_4455_N14W15_Fast_Sho…>
at 11:19 UT
on 3-Jun from the target region NOAA 14455 (N14W25). This region
has increased in magnetic complexity to a beta-gamma-delta
configuration, and produced an M7.7 flare and numerous C-class
flares during the period. Today, we will continue the Major Flare
Watch campaign for NOAA 14455 for another 24 hours. Further
C-class flares are expected, with a chance of an isolated >M5 flare
in the next 24 hours.
The position of NOAA 14455 on 4-Jun-2026 at 07:30 UT is:
N14W25, (389", 234")
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)