Dear Collaborators,
Solar activity has been very low since the last message. The largest
event in the past 24 hours was a C3.3 flare at 14:04 UT today(7/26)
from a newly emerged region (unnumbered) in the East of NOAA 14155.
NOAA 14155, NOAA 14153 and the target region, NOAA 14149 each
produced 2 low-C class flares in this period.
All the numbered regions on the disk are currently unanimated. The
new region produced the C3.3 event today shows only a small sunspot
and is uncertain if it develops further. Today, we will continue to
observe NOAA 14149, on the area of its following sunspot, expecting
additional C class events.
The position of the target in NOAA 14149 on 26-July-2025 at
15:30 UT is: N17W12 (202", 197").
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,
Aki Takeda (Montana State University)
Dear Collaborators,
Solar activity continues to be low since the last message.
The largest event in the past 24 hours was a C7.4 flare from the
trailing sunspot of NOAA 14149.
The region from the East limb (at the latitude of S08 degree) was
designated as NOAA 14155. It is currently classified as a beta-type,
continuing to produce low-C class flares. Yesterday's target, the
leading (positive) sunspot of NOAA 14149 has quieted in the past 24
hours. However NOAA 14149 has new flux emergence in the West of
following (negative) sunspot and was re-classified as a beta-gamma
type. This region produced 3 low-to-mid C class flares including the
largest event C7.4 in the period. Today, we will continue to
observe NOAA 14149, but switch to the area of its following sunspot,
expecting additional C class events.
The position of the target in NOAA 14149 on 25-July-2025 at
15:30 UT is: N16W01 (23", 191").
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,
Aki Takeda (Montana State University)
Dear Collaborators,
Solar activity continues to be low but has slightly increased from
the last message. The largest event in the past 24 hours is a C8.1
flare from the Southwest limb at the location of NOAA 14145.
Yesterday's target, NOAA 14150 did not produce flares.
A few of low-C class flares were reported from the yet-unnumbered
region from the East limb at the latitude of S08 degree. However,
its sunspot and magnetic configuration are still not clear.
NOAA 14149, passing the central meridian today was reclassified as
a beta type region (from a beta-gamma type) but started to produce
3 low-C class flares from the area of its leading (positive polarity)
sunspot after a few days of absence. Today, we will switch the
default target to NOAA 14149, at the location of the leading sunspot.
The position of the target in NOAA 14149 on 24-July-2025 at
15:30 UT is: N16E04 (-69", 182").
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,
Aki Takeda (Montana State University)
Dear Collaborators,
Solar activity continues to be low since the last message.
The target region, NOAA 14143 produced 3 low-C class flares but
completed Northwest limb passage earlier today. The largest event
in the last 24 hours was a C6.4 flare at 20:05 UT yesterday(7/22)
from NOAA 14150 at S14E32.
The largest active region, NOAA 14149 retains a beta-gamma type
magnetic configuration but stays flare-quiet for more than two days.
A newly emerged region in the Southeast quadrant, NOAA 14153
produced 3 low-C class flares yesterday but it is still uncertain
if it develops further.
NOAA 14150, currently classified as a beta type, recently added a
new sunspot (with positive polarity) at the Northwest side of the
main leading sunspot (negative polarity). This region is the source
of a C2.5 flare (at 13:31 UT today) in addition to the C6.4 event
yesterday. Today, we will observe the leading sunspot of NOAA 14150
as the default target, expecting additional C class events.
The position of the target in NOAA 14150 on 23-July-2025 at
15:30 UT is: S14E18 (-286", -312").
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,
Aki Takeda (Montana State University)
Dear Collaborators,
The activity of the earth-facing side of the Sun continues to be low.
However, there were a series of significant eruptive events from the
regions close to the Northwest limb for the past two days, observed as
the low-C class flares from NOAA 14139 and the target region, NOAA
14143. The largest events in the past 24 hours are two C2.8 flares,
one at 20:25 UT yesterday(7/21) from NOAA 14139 and another at 7:59
UT today from NOAA 14143. Other active regions on the disk stay quiet
since the last message.
NOAA 14143 is showing signs of decay but 6 low-C class flares were
recorded from this region in the past 24 hours. Today, we will
continue to observe the trailing sunspot of NOAA 14143 while it
undergoes limb passage. Additional C class events are expected.
The position of the target in NOAA 14143 on 22-July-2025 at
15:30 UT is: N25W79 (838", 388").
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,
Aki Takeda (Montana State University)
Dear Collaborators,
Solar activity continued to be low since the last message.
The largest event in the past 24 hours was a C5.1 flare at 00:02 UT
today(7/21) from NOAA 14143. This region is classified as a
beta-gamma/D-type and has slightly increased its area and sunspot
numbers from yesterday. The target region, NOAA 14136 produced a
C6.5 flare at 15:28 UT yesterday, but quieted down as it approached
the Northwest limb. Another notable source of flares was NOAA 14149
in the Northeast quadrant, having produced 2 low-C class flares in the
past 24 hours but also quieted during the recent 12 hours.
Today, we will observe NOAA 14143 as the default target, because of
its magnetic complexity and increased size. We will observe the
Northern part of its trailing (negative polarity) sunspot where the
C5.1 flare was from, expecting additional C class activities.
The position of the target in NOAA 14143 on 21-July-2025 at
15:00 UT is: N26W67 (782", 386").
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,
Aki Takeda (Montana State University)
--
Dear Collaborators,
Solar activity remains at a low level. The largest event since the
last message was a C7.6 flare at 07:29 UT today produced by the
target region NOAA 14136. 14136 also produced another three
C-class flares (including a C6.5) during the period. It retains a beta-
gamma/D-type sunspot group with decreasing the sunspot area and
number of spots slightly. Today we will continue to watch this region.
If possible, places also include NOAA 14143 (N25W60) in your field
of view. 14143 has developed to a beta-gamma/D-type region and
was the source of five low C-class flares. Note that a newly numbered
region NOAA 14149 (N17E61, beta/D-type) was the source of three
low C-class flares. Additional C-class flares are expected from various
regions in the following 24 hours.
The position of NOAA 14136 on July 20 at 15:30 UT is:
N21W71 (834", 313")
See http://www.SolarMonitor.org <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 continues to be at a very low level. The largest event
since the last message was a C3.3 flare at 08:56 UT today produced
by a limb region NOAA 14135 (S08W85, alpha/A-type), which is rotating
over the west limb. The target region NOAA 14136 produced seven
~C2 flares during the period, the largest one being a C2.6 at 06:51 UT
today. 14136 has decayed to a beta-gamma/D-type configuration but
retains its sunspot area and number of spots. Today we will continue
to watch this region. Further C-class activities are expected in the next
24 hours.
The position of NOAA 14136 on July 19 at 11:30 UT is:
N21W57 (740", 298")
See http://www.SolarMonitor.org <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 remains at a low level. The largest event since
the last message was a C3.6 flare at 08:05 UT today produced
by NOAA 14136. 14136 has been designated as a beta-delta/
D-type region, increasing in the sunspot area and number of
spots. This region also produced eight ~C2 flares during the
period. Today the target will switch to this region. Yesterday's
target 14142 (N01E01, beta-gamma/D-type) has been flare
quiet after producing the C2.9 flare at 13:09 UT yesterday.
Additional C-class activities are expected in the following 24
hours.
The position of NOAA 14136 on July 18 at 11:30 UT is:
N21W44 (613", 286")
See http://www.SolarMonitor.org <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 remains at a low level. The largest event since
the last message was a C5.9 flare at 09:17 UT today produced
by NOAA 14136 (N19W35). 14136 has been designated as a
beta-gamma/C-type configuration, with increasing the sunspot
area significantly. This region also produced another two C1.3
flares today. The target region NOAA 14142 was the source of
eight ~C2 flares during the period. It remains a beta-gamma/
D-type sunspot group. Today we will continue to watch this region.
Additional C-class flares are expected from various regions
including NOAA 14142 and 14136 in the next 24-hour period.
The position of NOAA 14142 on July 17 at 11:30 UT is:
N01E14 (-229", -56")
See http://www.SolarMonitor.org <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)