MMmotd October 2026

mmmotd@solar.physics.montana.edu

1 participants
34 discussions

MM#009 Default Target
by Max Millennium Chief Observer 31 Oct '26

31 Oct '26

Dear Collaborators, Solar activity remains at a very low level. The target region NOAA 14564 (N04E51, beta/C-type) produced the largest event of the period, a B7.3 flare at 13:08 UT yesterday, as well as several other B-class flares. Significant magnetic flux emergence continues within the region, particularly in its central portion. Today, the target will remain at NOAA 14564. Further B-class activity is expected in the next 24 hours. The position of NOAA 14564 on 31-Oct-2026 at 08:30 UT is: N04E51 (-751", 19") See http://www.SolarMonitor.org and the newer version https://solmon.dias.ie for images and other information. Regards, De-Chao Song (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 30 Oct '26

30 Oct '26

Dear Collaborators, Solar activity has remained at a very low level since the last message. The target region has now been designated NOAA 14564 (N05E63, alpha/A-type). It produced the largest event of the period, a B3.4 flare at 22:17 UT yesterday, as well as a B3.3 flare. Clear magnetic flux emergence is visible around its trailing sunspots. Today, the target will remain at NOAA 14564, with particular attention to its trailing portion. Further B-class activity is expected in the next 24 hours. The position of NOAA 14564 on 30-Oct-2026 at 08:30 UT is: N05E63 (-858", 49") See http://www.SolarMonitor.org and the newer version https://solmon.dias.ie for images and other information. Regards, De-Chao Song (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 29 Oct '26

29 Oct '26

Dear Collaborators, Solar activity has been at a very low level since the last message. The largest event in the period was a B6.4 flare at 12:38 UT yesterday produced by the previous target region NOAA 14561. This region has now rotated fully out of view beyond the west limb. A new active region (unnumbered yet) has rotated onto the visible disk near the northeast limb (N03E77), showing prominent coronal loops and some very weak flaring activity. Today, the target will switch to this northeastern limb region. Further B-class activity is expected in the next 24 hours. The approximate position of the target region on 29-Oct-2026 at 08:30 UT is: N03E77 (-941", 57") See http://www.SolarMonitor.org and the newer version https://solmon.dias.ie for images and other information. Regards, De-Chao Song (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 28 Oct '26

28 Oct '26

Dear Collaborators, Solar activity has decreased slightly since the last message. The target region NOAA 14561 (S11W91, beta/D-type) produced the largest event of the period, a C1.0 flare at 06:00 UT today, as well as several B-class flares. Although it has now rotated just beyond the west limb, it remains the most flare-productive region in the period. Today we will continue to watch this region, for a final 24 hours. Further low C-class activity remains possible in the next 24 hours. The position of NOAA 14561 on 28-Oct-2026 at 08:30 UT is: S11W91 (947", -182") See http://www.SolarMonitor.org and the newer version https://solmon.dias.ie for images and other information. Regards, De-Chao Song (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 27 Oct '26

27 Oct '26

Dear Collaborators, Solar activity has remained at low levels since the last message. The target region has now been designated NOAA 14561 (S11W84, beta/D-type). It produced the largest event of the period, a C2.8 flare at 18:17 UT yesterday, as well as several B-class flares. Although it is approaching the west limb, it remains the most flare-productive region on the visible disk. Today, the target will remain at NOAA 14561. Further low C-class activity is expected in the next 24 hours. The position of NOAA 14561 on 27-Oct-2026 at 12:30 UT is: S11W84 (942",-191") See http://www.SolarMonitor.org and the newer version https://solmon.dias.ie for images and other information. Regards, De-Chao Song (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 26 Oct '26

26 Oct '26

Dear Collaborators, Solar activity has increased since the last message, with several low C-class flares reported. Yesterday's target region, NOAA 14560 (N13W89, beta/F-type), is approaching the west limb and shows signs of sunspot decay. It produced two C1.5 flares and several B-class events during the period. The small emerging region (S09W70; unnumbered yet) in the southwest quadrant mentioned yesterday is now showing rapid and significant magnetic flux emergence. This region produced the largest event of the period, a C1.9 flare starting at 08:21 UT today, as well as three low C-class flares (C1.0, C1.3, and C1.5). Today, the target will switch to this emerging region. Further low C-class activity is expected in the next 24 hours. The approximate position of the target region on 26-Oct-2026 at 08:30 UT is: S09W70 (897", -179") See http://www.SolarMonitor.org and the newer version https://solmon.dias.ie for images and other information. Regards, De-Chao Song (Purple Mountain Observatory)

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MM#009 Default Target
by Max Millennium Chief Observer 25 Oct '26

25 Oct '26

Dear Collaborators, Solar activity remains very low since the last message. The largest event reported in the period is a B9.1 at 12:14 UT today(10/25) from the following sunspots of NOAA 14560. This region is still undergoing mild flux emergence, having added a new sunspot in the following area. Besides NOAA 14560, there are three bright regions on the disk; two are plages recently rotated from the NorthEast and SouthEast limb, respectively, the rest is a small region emerged in the SouthWest quadrant. However, none of them is associated with sunspots except tiny pores, no flare activity reported. Today NOAA 14560 will remain the target. The leading sunspots will begin their limb transits in the next 24 hours. We will observe the East of the following sunspots, expecting high-B to low-C class events. The position of the target in NOAA 14560 on 25-October-2026 at 16:00 UT is: N14W70 (881", 206"). See http://www.SolarMonitor.org and the newer version https://solmon.dias.ie for images and other information. Regards, Aki Takeda (Montana State University) --

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MM#009 Default Target
by Max Millennium Chief Observer 24 Oct '26

24 Oct '26

Dear Collaborators, Solar activity has been very low since the last message. The largest event in the period was a C1.3 flare at 18:53 UT yesterday(10/23) from the target region, NOAA 14560. This region produced additional low-C and high-B class events at around 7UT today, but other than those, GOES/XRS soft X-ray flux(1-8A) stayed at B4 to B5 level. Although fewer flares were reported, NOAA 14560 is showing some new flux emergence with sunspot motion at the central area. Today we will continue to observe NOAA 14560, a group of small sunspots in the East of the leading sunspot. Additional C class events are expected. The position of the target in NOAA 14560 on 24-October-2026 at 15:30 UT is: N12W69 (883", 174"). See http://www.SolarMonitor.org and the newer version https://solmon.dias.ie for images and other information. Regards, Aki Takeda (Montana State University) --

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MM#009 Default Target
by Max Millennium Chief Observer 23 Oct '26

23 Oct '26

Dear Collaborators, Solar activity has slightly increased since the last message. The target region, NOAA 14560 produced a C3.3 flare at 5:33 UT today(10/23), the largest event in the period, and 3 other low-C class and several high-B class flares. This region has reached a stage of maturity, now showing a sign of decay. The previous target, NOAA 14557 added tiny sunspots in the central area, which produced 4 low-C class flares, but this region undergoes limb transit in the next 24 hours. Today we will continue to observe NOAA 14560, a group of small sunspots at the central area, the source area of the C3.3 flare. Additional C class events are expected. The position of the target in NOAA 14560 on 23-October-2026 at 15:30 UT is: N11W51 (745", 131"). See http://www.SolarMonitor.org and the newer version https://solmon.dias.ie for images and other information. Regards, Aki Takeda (Montana State University) --

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MM#009 Default Target
by Max Millennium Chief Observer 22 Oct '26

22 Oct '26

Dear Collaborators, Solar activity remains low since the last message. The largest event in the period was a C3.5 flare at 3:04 UT today(10/22) produced by NOAA 14560 located in the NorthEast of NOAA 14557. NOAA 14560 shows further flux emergence at the central area and developed to a beta-gamma type. This region produced three other low-C class and a few high-B class flares in the last 24 hours. The target region, NOAA 14557 reduced both in size and magnetic complexity, only produced a C1.4 flare and 2 high-B class events. Today we will switch the default target to NOAA 14560 to observe the sunspots in the central portion with mixed polarity. Additional C class events are expected. The position of the target in NOAA 14560 on 22-October-2026 at 16:00 UT is: N11W37 (580", 118"). See http://www.SolarMonitor.org and the newer version https://solmon.dias.ie for images and other information. Regards, Aki Takeda (Montana State University) --

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MMmotd October 2026