Dear Collaborators,
Solar activity has remained at a low level. NOAA 14432 continues
to be the most productive region, producing numerous <=C2.1
flares, and retains its beta-gamma/E-type magnetic configuration.
Yesterday’s target, NOAA 14436, has been downgraded to a
beta/C-type configuration and produced only a few ~C2 flares.
Today we shall end the Major Flare Watch campaign, and the
default target shall switch back to NOAA 14432. Additional low-C
flares are expected in the next 24 hours.
The position of NOAA 14436 on 13-May-2026 at 15:30 UT is:
N14W91 (920", 228")
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.
NOAA 14432 (N14W74, beta-gamma/E-type) has maintained its
high productivity, producing eleven <C2 flares. The target region
NOAA 14436 has been classified as a beta-gamma/D-type,
although it has become flare-quiet during the period. Today, the
Major Flare Watch will remain active for a final 24 hours with
NOAA 14436. The low-C activity is expected, with a slight chance
for an >M5 flare in the coming 24 hours.
The position of NOAA 14436 on 12-May-2026 at 07:30 UT is:
N19E37 (-542", 347")
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 a high level due to an eruptive M5.8
flare at 13:19 UT yesterday from NOAA 14436. This region has
been classified as beta/D-type. At this point, we are implementing
a Major Flare Watch on 14436. Yesterday’s target NOAA 14432
(N14W60, beta‑gamma/E-type) has produced multiple low‑C and
B-class flares, showing significant magnetic flux emergence.
Additional C-class activity is expected, with the possibility of
another >M5 from 14436 within the next 48 hours.
The position of NOAA 14436 on 11-May-2026 at 07:30 UT is:
N19E51 (-699", 340")
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 continued at a low level. The target region,
NOAA 14432, has remained the most productive, producing
14 low-C flares and the largest being a C3.8 at 09:32 UT today.
Significant new spots emerged in this region, which retains a
beta/D-type magnetic configuration. Today, the target shall
remain on NOAA 14432. Further C-class activity is expected,
with a low-M flare likely in the following 24 hours.
The position of NOAA 14432 on 10-May-2026 at 11:30 UT is:
N14W49 (697", 263")
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.
NOAA 14432 has been the most productive region, producing
~20 low-C flares, the largest of which was a C4.2 flare at 15:39
UT yesterday. This region has been classified as a beta/D-type
magnetic configuration, with its sunspot area and number
increasing. Yesterday’s limb target has been flare-quiet during
this period. Today 14432 should become the new target. Further
C-class activity is expected, with a chance for an isolated low-M
flare in the coming 24 hours.
The position of NOAA 14432 on 9-May-2026 at 15:30 UT is:
N14W38 (569", 272")
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 a moderate level due to an eruptive
M2.6 flare at 14:20 UT yesterday from the target region. This
region (still unnumbered) has become the most productive in
the past 24 hours, also producing a C4.9 and two ~C1 flares.
Today, the target should remain at this limb region. Further
C-class activity is expected, with another low-M flare likely in
the next 24 hours.
The approximate position of the target on 08-May-2026 at 11:30 UT is:
N19E88 (-900", 300")
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 slightly in the past 24 hours. An
unnumbered region behind the northeast limb produced the
largest event, a partially occulted C4.5 flare at 01:28 UT
today, which was long-duration and accompanied by a CME.
Yesterday’s target, NOAA 14431, produced a ~B7 and a ~C2
flare but showed signs of decay, with its magnetic configuration
degrading to beta/C-type. Today, the target will switch to this
limb region from 14431. Additional low-C activity is expected
in the following 24 hours.
The approximate position of the target on 07-May-2026 at 11:30 UT is:
N17E88 (-900", 288")
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 largest event
since the last message was a C1.8 flare at 14:09 UT yesterday
from NOAA 14425 (N06W82, alpha/H-type), which also produced
two ~C1 flares. Yesterday’s target NOAA 14424 only produced
a C1.3 flare before it completely transited out of Earth-view.
NOAA 14431 on the disk was also the source of three ~C1 flares,
and was classified as a beta/E-type, with new spots emerging.
Although 14425 produced the largest flare, its proximity to the
northwest limb limits further observation. Therefore, today’s new
target is NOAA 14431. Continued C-class activity is probable in
the coming 24-48 hours.
The position of NOAA 14431 on 06-May-2026 at 11:30 UT is:
S16W08 (127", -205")
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 been at a moderate-to-low level since the
last message. In the past 24 hours, NOAA 14424 produced
three C-class flares, the largest of which was a partially
occulted C6.0 flare at 05:21 UT today, following an M1.8 flare
yesterday. This region was classified as a beta/D-type sunspot
group and has rotated beyond the northwest limb. Close to the
southeast of 14424, NOAA 14425 (N05W68, alpha/H-type)
produced three ~C2 flares in the period with the emergence of
new magnetic fluxes. Today the target will switch to NOAA
14424 (with 14425 included). C-class flares are likely in the
following 24 hours.
The position of NOAA 14424 on 05-May-2026 at 11:30 UT is:
N17W91 (909", 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,
Qiao Li (Purple Mountain Observatory)
Dear Collaborators,
Solar activity remains at a low level. Several flares were produced since
the last message, the largest being a partially occulted C8.7 from NOAA
14420 at 18:30 UT yesterday. NOAA 14431 has continued its development on
the disk, however the most active region of the last 24 hours was NOAA
14429. The target region will switch to NOAA 14429 for the next 24 hours,
further C-class activity is expected.
The position of NOAA 14429 on 03-May-2026 at 11:30 UT is:
S04W01, (16", 0")
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)