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)
Dear Collaborators,
Solar activity remains at a low level. Several flares have been produced
since the last message, the largest being a C7.4 from NOAA 14420 at 15:24
UT yesterday. NOAA 14420 is now close to transiting fully beyond the
northwestern limb, however it has still produced some partially occulted
flares since the last message. Newly numbered active region NOAA 14431 has
moved onto the disk from the southeastern limb, this region has shown
notable signs of sunspot dynamism since coming into view. The target region
will switch to NOAA 14431, however while still possible, attention should
be paid to the limb location of NOAA 14420 for the chance of some final
occulted events. Additional C-class activity is expected in the next 24
hours.
The position of NOAA 14431 on 02-May-2026 at 03:30 UT is:
N16E51, (-712", -221")
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 steadily at a low level. NOAA 14420 a small number
of flares since the last message, the largest being a pair of C1.9 flares
at 04:12 and 09:29 UT today, respectively . NOAA 14420 is now transiting
the northwestern limb and still shows signs of strong flux. This region
will remain the target region while it is still in view. Further C-class
activity is expected.
The position of NOAA 14420 on 01-May-2026 at 11:30 UT is:
N16W76, (888", 277")
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 is at a low level. Several flares were produced since the
last message, the largest being a C3.7 from a currently unnumbered active
region over the southeastern limb at 09:35 UT today. NOAA 14420 continues
to produce multiple flares, however in the last 24 hours these have been
limited to lower C-class flares. This region is now beginning to transit
the northwestern limb, signs of emerging flux still exist in this region
and it should continue to be monitored. NOAA 14420 will remain the target
region. Further C-class activity is expected.
The position of NOAA 14420 on 30-April-2026 at 11:30 UT is:
N16W63, (816", 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,
Harry Greatorex (Queen's University Belfast)
Dear Collaborators,
Solar activity remains at a low-moderate level. A number of flares were
produced in the last 24 hours, including a trio of M-class events, the
largest being an M1.6 from NOAA 14420 at 13:49 UT yesterday. NOAA 14420
produced fifteen flares since the last message, and while the flux
associated with the region appears to have reduced slightly, the region
still shows notable sunspot activity. At this time, we are ending the Major
Flare Watch, however NOAA 14420 will remain as the target region. Further
C-class and low M-class activity is likely in the next 24 hours.
The position of NOAA 14420 on 29-April-2026 at 07:30 UT is:
N16W47, (671", 310")
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-moderate level. Several flares were
produced since the last message, the largest being a C9.0 from NOAA 14420
at 09:14 UT today. NOAA 14420 has seen a partial reduction in the levels of
sunspot dynamism since the last message, however this region still shows
significant flux. Meanwhile, NOAA 14425 has doubled in size over the last
24 hours but has not produced any particularly significant flares. The
Major Flare Watch will remain active for a final 24 hours with NOAA 14420
as the primary target region. Additional attention should be paid to the
development of NOAA 14425 also. Further mid-high C-class activity is
anticipated with the very slight chance for a >M5.0 event.
The position of NOAA 14420 on 28-April-2026 at 11:30 UT is:
N16W36, (540", 320")
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-moderate level. NOAA 14420 was the site of
numerous flares in the last 24 hours including an M6.0 at 22:51 UT
yesterday. NOAA 14419 has now passed beyond the northwestern limb.
Meanwhile, NOAA 14420 continues to develop, it retains its beta-gamma-delta
type configuration while showing significant levels of flux. Additionally,
NOAA 14425 has developed into a beta-gamma-delta region, though this region
is not quite as large as NOAA 14420. Due to the continued production of
large flares, the Major Flare Watch will be extended with NOAA 14420 as the
target region. Additional high C-class and low M-class activity is likely,
with the chance for a further isolated >M5.0 flare.
The position of NOAA 14420 on 27-April-2026 at 11:30 UT is:
N16W23, (359", 329")
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)