Solar Activity Reports September 2017 |
BBSO Solar Activity Report 30 September 2017 16:26:54 UT |
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Solar activity is low. No significant flare events have been observed since the last report.
No significant flare events expected today.
NOAA 12681, S13 W58 (X= 794,Y=-273). Alpha region. NOAA 12682, S09 W02 (X= 33,Y=-261). Alpha region. NOAA 12683, N14 E11 (X=-178,Y= 124). Alpha region. Positions as of September 30, 2017 at 16:30 UT. JV |
BBSO Solar Activity Report 29 September 2017 16:16:31 UT |
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Solar activity is low. No significant flare events have been observed since the last report.
None are expected today.
NOAA 12681, S14 W44 (X= 647,Y=-309). Alpha region. NOAA 12682, S09 E12 (X=-197,Y=-259). Beta-gamma region. NOAA 12683, N14 E17 (X=-272,Y= 125). Alpha region. Positions as of September 29, 2017 at 15:30 UT. JV |
BBSO Solar Activity Report 28 September 2017 17:11:03 UT |
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Solar activity is low. No significant flare events have been observed since the last report.
C-class flare possible in region NOAA 12681 and NOAA 12683.
NOAA 12681, S13 W31 (X= 483,Y=-310). Beta-gamma region. C-class flare possible. NOAA 12682, S10 E21 (X=-339,Y=-271). Alpha region. NOAA 12683, N13 E36 (X=-551,Y= 125). Alpha region. C-class flare possible. Positions as of September 28, 2017 at 17:00 UT. JV |
BBSO Solar Activity Report 27 September 2017 16:20:54 UT |
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Solar activity is moderate. Region NOAA 12683 produced a C1.7 flare at 00:50 UT today.
C-class flare possible in region NOAA 12681 and NOAA 12683.
Unnumbered region, S08 W25 (X= 402,Y=-236). Alpha-f region. NOAA 12681, S15 W16 (X= 256,Y=-354). Alpha region. C-class flare possible. NOAA 12682, S11 E37 (X=-568,Y=-272). Alpha region. NOAA 12683, N12 E51 (X=-730,Y= 128). Beta region. C-class flare possible. Positionas as of September 27, 2017 at 15:30 UT. JV |
BBSO Solar Activity Report 26 September 2017 16:05:46 UT |
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Solar activity is moderate. Region NOAA 12683 produced a C1.8 flare at 02:29 UT today.
Region NOAA 12681 shows some growth.
C-class flares possible in regions NOAA 12681 and NOAA 12683.
NOAA 12681, S12 W06 (X= 98,Y=-311). Beta region. C-class flare possible. NOAA 12682, S10 E49 (X=-714,Y=-240). Alpha region. NOAA 12683, N11 E66 (X=-860,Y= 136. Alpha region. C-class flare possible. Positions as of September 26, 2017 at 16:00 UT. JV |
BBSO Solar Activity Report 25 September 2017 16:50:27 UT |
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Solar activity is low. No significant flare events have been observed since the last report.
The former region NOAA 12674 has returned. The magnetic field configuration is uncertain
at this time. Region NOAA 12681 has produced several B-class events. A C-class event
is possible from this region.
NOAA 12681, S13 E09 (X=-147,Y=-326). Beta region. C-class flare possible. NOAA 12682, S09 E61 (X=-829,Y=-204). Alpha region. Unnumbered region, N13 E80 (X=-919,Y= 194). Magnetic class uncertain. Positions as of September 25, 2017 at 16:30 UT. JV |
BBSO Solar Activity Report 24 September 2017 14:26:43 UT |
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Solar activity is low. No significant flare events have been observed since the last report.
A region has rotated onto the visible disk. Although it will receive a new number as is
customary, it is the return of region NOAA 12673. C-class flare possible from this region.
NOAA 12681, S13 E23 (X=-366,Y=-319). Beta region. Unnumbered region, S11 E78 (X=-919,Y=-205). Alpha region. C-class flare possible. Positions as of September 24, 2017 at 14:30 UT. JV |
BBSO Solar Activity Report 23 September 2017 16:17:07 UT |
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Solar activity is low. No significant flare events have been observed since the last report.
Region NOAA 12681 remains stable. Region NOAA 12680 has passed beyond the west limb.
No significant flare events are expected today.
NOAA 12681, S13 E36 (X=-550,Y=-307). Alpha region. Position as of September 23, 2017 at 16:00 UT. JV |
BBSO Solar Activity Report 22 September 2017 17:14:15 UT |
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Solar activity is low. No significant flare events have been observed since the last report.
No significant flare events are expected today.
NOAA 12680, N08 W89 (X= 947,Y= 130). Alpha region. NOAA 12681, S13 E49 (X=-705,Y=-289). Alpha region. Positions as of September 22, 2017 at 17:00 UT. JV |
BBSO Solar Activity Report 21 September 2017 16:03:03 UT |
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Solar activity is low. No significant flare events have been observed since the last report,
although there have been B-class flares in both regions. No significant flare events
are expected today.
NOAA 12680, N08 W77 (X= 923,Y= 106). Alpha region. NOAA 12681, S12 E63 (X=-835,Y=-250). Alpha region. Positions as of September 21, 2017 at 16:00 UT. JV |
BBSO Solar Activity Report 20 September 2017 15:38:15 UT |
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Solar activity is low. No significant flare events have been observed since the last report.
None are expected today.
NOAA 12680, N08 W62 (X= 838,Y= 77). Alpha region. Unnumbered region, S13 E78 (X=-912,Y=-237). Alpha region. Positions as of September 20, 2017 at 15:30 UT. JV |
BBSO Solar Activity Report 19 September 2017 16:39:48 UT |
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Solar activity is low. No significant flare events have been observed since the last report.
Region NOAA 12680 remains stable. No significant flare events are expected today.
NOAA 12680, N08 W50 (X= 727,Y= 57). Alpha region. Position as of September 19, 2017 at 16:30 UT. JV |
BBSO Solar Activity Report 17 September 2017 14:17:26 UT |
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Solar activity is low. No significant flare events have been observed since the last report.
None are expected today.
NOAA 12680, N08 W22 (X= 356,Y= 23). Alpha region. Position as of September 17, 2017 at 14:30 UT. JV |
BBSO Solar Activity Report 16 September 2017 16:15:39 UT |
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Solar activity is low. No significant flare events have been observed since the last report.
Region NOAA 12680 remains stable. No significant flare events are expected today.
NOAA 12680, N08 W10 (X= 164,Y= 16). Alpha region. Position as of September 16, 2017 at 16:00 UT. JV |
BBSO Solar Activity Report 15 September 2017 18:25:42 UT |
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Solar activity is low. No significant flare events have been observed since the last report.
None are expected today.
NOAA 12680, N08 E02 (X= -33,Y= 14). Alpha region. Position as of September 15, 2017 at 18:30 UT. JV |
BBSO Solar Activity Report 14 September 2017 16:33:10 UT |
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Solar activity is low. Region NOAA 12680 produced at C1.6 flare at 19:03 UT on the 12th. No
significant flares have been observed since then. No significant flare events are expected today.
NOAA 12680, N09 E16 (X=-261,Y= 35). Alpha region. Position as of September 14, 2017 at 16:30 UT. JV |
BBSO Solar Activity Report 12 September 2017 16:59:28 UT |
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Solar activity is moderate. Region NOAA 12680 produced a C3.0 flare at 07:22 UT
today. This region has shown some growth and is now beta class with a strongly rotated
field. Further C-class events possible.
NOAA 12680, N09 E43 (X=-645,Y= 61). Beta region. C-class flare possible. Position as of September 12, 2017 at 17:00 UT. JV
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BBSO Solar Activity Report 11 September 2017 14:41:10 UT |
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Solar activity is very high. Region NOAA 12673 produced a very large X8.2 flare at 15:35 UT yesterday.
The region is located beyond the west limb at S09. This flare was unexpected since the region
had appeared to be simplifying before moving over the limb. No significant flare events expected
today.
NOAA 12674, N13 W89 (X= 929,Y= 211). Beta region. NOAA 12680, N09 E57 (X=-792,= 84). Alpha region. Positions as of September 11, 2017 at 14:30 UT. JV |
BBSO Solar Activity Report 10 September 2017 13:56:31 UT |
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Solar activity is high. Region NOAA 12673 produced an M1.2 flare at 22:04 UT yesterday
and several C-class events. This region has now passed over the west limb at S09, but may
still produce C-class events today.
NOAA 12674, N13 W75 (X= 897,Y= 182). Beta region. NOAA 12678, N11 W15 (X= 243,Y= 66). Beta region. Unnumbered region, N10 E72 (X=-894,Y= 128). Alpha region. Positions as of September 10, 2017 at 13:30 UT. JV |
BBSO Solar Activity Report 09 September 2017 16:05:53 UT |
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Solar activity is high. Region NOAA 12673 produced three M-class flares since the last report,
most recently an M3.7 at 10:50 UT today. The other regions have been quiet. Region NOAA 12673 is
nearing the west limb and appears beta class at this time. No doubt this is mainly due to the
geometry near the limb. The region does appear to be simpler than previously, however.
M-class flares are expected.
NOAA 12673, S09 W80 (X= 928,Y=-169). Beta region. N-class flares expected. NOAA 12674, N13 W64 (X= 836,Y= 162). Beta region. NOAA 12678, N11 W05 (X= 82,Y= 63). Beta region. Unnumbered region, N10 E85 (X=-935,Y= 154). Alpha region. Positions as of September 9, 2017 at 16:00 UT. JV |
BBSO Solar Activity Report 08 September 2017 18:12:50 UT |
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Solar activity is high. Region NOAA 12673 produced several M-class flares since the last
report, including an M2.9 at 15:09 UT today. The region is reduced in complexity, although
it is still beta-gamma-delta class. M-class flares are expected and an X-class flare remains possible.
Region NOAA 12678 produced a C-class flare at 06:24 UT today. Additional C-class flare
possible in this region.
NOAA 12673, S09 W69 (X= 880,Y=-191). Beta-gamma-delta region. M-class flares expected, X-class flare possible. NOAA 12674, N14 W52 (X= 731,Y= 157). Beta region. NOAA 12679, N14 W38 (X= 571,Y= 137). Beta region. NOAA 12677, N17 E01 (X= -16,Y= 162). Beta region. NOAA 12678, N11 E07 (X=-115,Y= 63). Beta region. C-class flare possible. Positions as of September 8, 2017 at 18:00 UT. JV |
BBSO Solar Activity Report 07 September 2017 16:23:47 UT |
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Solar activity is high. Region NOAA 12673 produced an X1.3 flare at 14:20 UT today
along with M-class activity. Region NOAA 12673 has simplified somewhat, but
an X-class flare is still possible. M-class flares are expected.
C-class flare possible in region NOAA 12674.
NOAA 12673, S09 W55 (X= 773,Y=-216). Beta-gamma-delta region. M-class flares expected, X-class flare possible. NOAA 12674, N14 W38 (X= 571,Y= 137). Beta region. C-class flare possible. NOAA 12677, N18 E15 (X=-235,Y= 182). Alpha region. NOAA 12678, N11 E21 (X=-337,Y= 70). Beta region. Positions as of September 7, 2017 at 16:30 UT. JV |
BBSO Solar Activity Report 06 September 2017 16:05:03 UT |
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Solar activity is extreme. Region NOAA 12673 produced two X-class flares since the last
report: an X2.2 at 08:57 UT and an X9.3 at 11:53 UT today. The region remains
beta-gamma-delta class, with a large field gradient and shear between the positive
and negative delta spots. It has also produced several M-class events.
Further X-class activity is likely. The potential for very large flare events still exists.
Region NOAA 12674 may produce a C-class event.
Regions NOAA 12675 and NOAA 12676 have passed beyond the west limb. NOAA 12673, S09 W40 (X= 607,Y=-239). Beta-gamma-delta region. X-class flare likely. NOAA 12674, N15 W24 (X= 376,Y= 139). Beta-gamma region. C-class flare possible. NOAA 12677, N18 E29 (X=-441,Y= 193). Beta region. NOAA 12678 N11 E35 (X=-538,Y= 84). Beta region. Positions as of September 6, 2017 at 16:00 UT. JV |
BBSO Solar Activity Report 05 September 2017 15:37:37 UT |
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Solar activity is high. Region NOAA 12673 produced a number of M-class flares since the
last report. The region has increased in complexity. The shear along the neutral line at the
delta spot appears to have increased. Further M-class flares are expected and
an X-class flare is likely. This region has the potential for very large flare events.
C-class flares are possible in region NOAA 12674.
NOAA 12675, S02 W85 (X= 948,Y= -43). Alpha region. Region is at the west limb. NOAA 12676, S09 W74 (X= 905,Y=-181). Beta region. NOAA 12673, S08 W25 (X= 400,Y=-240). Beta-gamma-delta region. M-class flares expected. X-class flare likely. NOAA 12674, N14 W10 (X= 161,Y= 114). Beta-gamma region. New flux west of old trailing spot. C-class flare possible. NOAA 12677, N19 E42 (X=-604,Y= 224). Alpha region. Unnumbered region, N10 E51 (X=-731,Y= 90). Beta region. New region. Positions as of September 5, 2017 at 15:30 UT. JV |
BBSO Solar Activity Report 04 September 2017 15:33:33 UT |
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Solar activity is high. Region NOAA 12673 produced an M1.2 flare at 05:36 UT today
along with several C-class events. This region is rapidly growing and is now
beta-gamma-delta class. Further M-class events are likely and an X-class flare is
possible. Region NOAA 12674 has also produced two C-class events. Further C-class
activity likely in this region.
NOAA 12675, S07 W72 (X= 900,Y=-152). Beta region. NOAA 12676, S11 W60 (X= 810,Y=-239). Beta region. NOAA 12673, S10 W11 (X= 180,Y=-281). Beta-gamma-delta region. M-class flare likely, X-class flare possible. NOAA 12674, N14 E03 (X= -49,Y= 113). Beta region. C-class flare likely. NOAA 12677, N19 E55 (X=-739,Y= 243). Alpha region. Positions as of September 4, 2017 at 15:30 UT. JV |
BBSO Solar Activity Report 03 September 2017 14:39:11 UT |
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Solar activity is moderate. A C1.0 flare was observed in region NOAA 12674 at 04:18 UT today.
A C1.5 flare was also observed in region NOAA 12672 at 21:56 UT yesterday.
Note that the C7.7 flare yesterday was incorrectly reported to have been in region NOAA 12674. In fact it was in region NOAA 12672 at the west limb. C-class flares likely in region NOAA 12674 and possible in region NOAA 12673. NOAA 12675, S08 W59 (X= 809,Y=-193). Beta region. NOAA 12676, S10 W45 (X= 665,Y=-248). Beta region. NOAA 12673, S10 W00 (X= 0,Y=-283). Beta-gamma region. C-class flare possible. NOAA 12674, N14 E16 (X=-256,Y= 117). Beta-gamma region. C-class flare likely. Unnumbered region, N17 E71 (X=-862,Y= 239). Beta region. Positions as of September 3, 2017 at 14:30 UT. JV |
BBSO Solar Activity Report 02 September 2017 17:43:25 UT |
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Solar activity is moderate. Region NOAA 12674 produced a C7.7 flare at 15:26 UT today, along
with an additional C-class flare yesterday. The region has simplified and is now beta class.
Additional C-class flares are likely. Region NOAA 12672 has rotated beyond the west limb.
Regions NOAA 12675 and NOAA 12673 are stable. A small new beta region has rotated
onto the disk at N17.
NOAA 12675, S08 W47 (X= 691,Y=-213). Beta region. NOAA 12673, S08 E13 (X=-213,Y=-248). Alpha region. NOAA 12674, N13 E28 (X=-437,Y= 110). Beta region. C-class flare likely. Unnumbered region, N17 E85 (X=-907,Y= 266). Beta region. Positions as of September 2, 2017 at 17:30 UT. JV
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BBSO Solar Activity Report 01 September 2017 17:14:29 UT |
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Solar activity is moderate. A C2.0 flare was observed in region NOAA 12674 at 15:41 UT today.
Region NOAA 12674 is now beta-gamma-delta class. Region NOAA 12672 is nearing the west
limb. Region NOAA 12673 is stable, as is region NOAA 12675. A new region may be
beyond the east limb near N10. Further C-class flares are likely in region NOAA 12674 and
an M-class event is possible.
NOAA 12672, N07 W80 (X= 930,Y= 95). Beta region. NOAA 12675, S07 W34 (X= 530,Y=-214). Beta region. NOAA 12673, S08 E26 (X=-415,Y=-238). Alpha region. NOAA 12674, N13 E43 (X=-634,Y= 128). Beta-gamma-delta region. C-class flare likely, M-class flare possible. Positions as of September 1, 2017 at 17:00 UT. JV |