| Solar Activity Reports December 2020 |
| BBSO Solar Activity Report 21 December 2020 17:44:11 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 12794, S17 E67 (X=-860,Y=-274). Alpha region. Position as of December 21, 2020 at 17:30 UT. JV |
| BBSO Solar Activity Report 20 December 2020 17:41:37 UT |
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Solar activity is low.
No significant flare events have been observed since the last report.
A new region has rotated onto the visible disk. So far it appears to
be a stable alpha spot. No significant flare events are expected today.
Unnumbered region, S16 E83 (X=-931,Y=-266). Alpha region. Position as of December 20, 2020 at 17:30 UT. JV |
| BBSO Solar Activity Report 18 December 2020 16:59:50 UT |
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Solar activity is very low.
No significant flare events have been observed since the last report.
Region NOAA 12793 has decayed.
No significant flare events are expected today.
JV |
| BBSO Solar Activity Report 17 December 2020 17:59:29 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 12793, S15 E24 (X=-385,Y=-234). Beta region. Position as of December 17, 2020 at 18:00 UT. JV |
| BBSO Solar Activity Report 16 December 2020 16:46:46 UT |
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Solar activity is low.
No significant flare events have been observed since the last report.
B-class events were observed in regions NOAA 12793 and NOAA 12792.
Region NOAA 12792 has decayed. No significant flare events are
expected today.
NOAA 12793, S15 E39 (X=-594,Y=-238). Beta region. Position as of December 16, 2020 at 16:30 UT. JV |
| BBSO Solar Activity Report 15 December 2020 16:46:57 UT |
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Solar activity is low.
No significant flare events have been observed since the last report.
B-class events have been observed from regions NOAA 12792 and NOAA 12793
overnight.
C-class activity is possible in region NOAA 12793.
NOAA 12792, S22 E30 (X=-454,Y=-353). Beta region. NOAA 12793, S16 E51 (X=-731,Y=-259). Beta region. C-class flare possible. Positions as of December 15, 2020 at 16:30 UT. JV |
| BBSO Solar Activity Report 14 December 2020 16:58:05 UT |
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Solar activity is low.
A C4 flare was observed in region NOAA 12792 at 14:09 UT today.
A new region has appeared at S15 E67. Further C-class activity
is possible from region NOAA 12792.
NOAA 12792, S22 E42 (X=-606,Y=-355). Beta region. C-class flare possible. Unnumbered region, S15 E67 (X=-868,Y=-247). Beta region. Positions as of December 14, 2020 at 16:30 UT. JV |
| BBSO Solar Activity Report 13 December 2020 17:11:03 UT |
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Solar activity is low.
Several B-class events have been observed in region NOAA 12792 since the last report.
A C-class flare is possible from this region. Region NOAA 12790 has rotated beyond
the west limb.
NOAA 12792, S23 E57 (X=-753,Y=-374). Beta region. C-class flare possible. Position as of December 13, 2020 at 16:30 UT. JV
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| BBSO Solar Activity Report 12 December 2020 16:41:45 UT |
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Solar activity is low.
Two B-class events were observed from a new region in the SE.
No significant flare events are expected today.
NOAA 12790, S23 W77 (X= 875,Y=-379). Alpha region. Unnumbered region, S21 E71 (X=-862,Y=-347). Beta region. Positions as of December 12, 2020 at 16:30 UT. JV |
| BBSO Solar Activity Report 11 December 2020 18:01:35 UT |
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Solar activity is low.
No significant flare events have been observed since the last report.
B-class events have been observed from region NOAA 12790 and from
a new region beyond the east limb at S21. This east limb
region should begin appearing on the visible disk tomorrow.
No significant flare events are expected today.
NOAA 12789, S22 E65 (X= 819,Y=-362). Alpha region. Position as of December 11, 2020 at 16:30 UT. JV
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| BBSO Solar Activity Report 10 December 2020 16:49:15 UT |
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Solar activity is low.
Several B-class events were observed in region
NOAA 12791 overnight. The region shows no spots
at this time, but a C-class event is possible anyway.
An isolated flare from a decaying region is not unusual.
No other significant events are expected today.
NOAA 12790, S23 W52 (X= 708,Y=-377). Alpha region. NOAA 12791, S15 W23 (X= 369,Y=-247). No spots visible, but C-class flare possible. Positions as of December 10, 2020 at 16:30 UT. JV
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| BBSO Solar Activity Report 09 December 2020 17:13:30 UT |
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Solar activity is low.
No significant flare events have been observed since the last report.
Region NOAA 12791 has a new pore.
No significant flare events are expected today.
NOAA 12790, S21 W39 (X= 574,Y=-347). Alpha region. NOAA 12791, S15 W09 (X= 147,Y=-249). Alpha region. Positions as of December 9, 2020 at 16:30 UT. JV |
| BBSO Solar Activity Report 08 December 2020 17:41:59 UT |
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Solar activity is low.
No significant flare events have been observed since the last report.
Region NOAA 12791 has decayed.
No significant flare events are expected today.
NOAA 12790, S22 W25 (X= 383,Y=-364). Alpha region. Positions as of December 8, 2020 at 16:30 UT. JV |
| BBSO Solar Activity Report 07 December 2020 16:47:45 UT |
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Solar activity is low.
A C7.4 flare is occurring at this time in region
NOAA 12790. Regions NOAA 12790 and NOAA 12791 are
decaying. A C-class flare is still possible in region NOAA 12790.
NOAA 12790, S23 W11 (X= 172,Y=-382). Alpha region. C-class flare possible. NOAA 12791, S16 E21 (X=-337,Y=-270). Alpha region. Positions as of December 7, 2020 at 12:30 UT. JV |
| BBSO Solar Activity Report 06 December 2020 17:12:22 UT |
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Solar activity is moderate.
Two C-class flares have been observed in region NOAA 12790 since the last report.
Region NOAA 12786 has rotated beyond the west limb.
Region NOAA 12790 remains beta class. C-class activity is still possible from this
region.
The region in the SE is now named NOAA 12791.
NOAA 12790, S23 E02 (C= -31,Y=-384). Beta region. C-class flare possible. NOAA 12791, S16 E35 (X=-538,Y=-271). Beta region. Positions as of December 6, 2020 at 16:30 UT. JV |
| BBSO Solar Activity Report 05 December 2020 16:17:15 UT |
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Solar activity is moderate.
A C1.6 flare was observed in region NOAA 12790 at 00:16 UT today.
A C1.2 flare was also observed in region NOAA 12786 at 11:20 UT today.
Region NOAA 12786 is nearing the west limb.
C-class flares remain possible from regions NOAA 12786 and NOAA 12790.
NOAA 12786, S17 W80 (X= 918,Y=-286). Alpha region. C-class flare possible. NOAA 12790, S23 E15 (X=-233,Y=-386). Beta region. C-class flare possible. Unnumbered region, S15 E49(X=-712,Y=-256). Beta region. Positions as of December 5, 2020 at 16:00 UT. JV
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| BBSO Solar Activity Report 04 December 2020 16:44:53 UT |
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Solar activity is low.
A C1.4 flare was observed in region NOAA 12790 at 23:46 UT yesterday.
Regions NOAA 12786 and 127890 have decayed somewhat.
Region NOAA 12785 is rotating over the west limb.
A plage region in the SE has produced some pores.
C-class events remain possible from regions NOAA 12786 and NOAA 12790.
NOAA 12785, S23 W84 (X= 892,Y=-381). Alpha region. NOAA 12786, S17 W65 (X= 845,Y=-288). Alpha region. C-class flare possible. NOAA 12790, S22 E27 (X=-412,Y=-372). Alpha region. C-class flare possible. Unnnumbered region, S16 E61 (X=-821,Y=-272). Alpha region. Positions as of December 4, 2020 at 16:30 UT. JV |
| BBSO Solar Activity Report 03 December 2020 17:19:41 UT |
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Solar activity is moderate.
C-class events were observed overnight from regions
NOAA 12786 and NOAA 12790. C-class events remain possible
from regions NOAA 12786 and NOAA 12790.
NOAA 12785, S22 W70 (X= 850,Y=-368). Alpha region. NOAA 12786, S17 W50 (X= 715,Y=-291). Alpha region. C-class flare possible. NOAA 12790, S23 E40 (X=-578,Y=-388). Beta region. C-class flare possible. Positions as of December 3, 2020 at 17:00 UT. JV |
| BBSO Solar Activity Report 02 December 2020 16:39:26 UT |
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Solar activity is moderate. A C1.4 flare was observed in region NOAA 12786 at 23:11 UT
yesterday. This region remains beta class and the leader spot is slowly breaking up.
The region in the SE, now NOAA 12790, is now beta class. C-class flares remain possible
from regions NOAA 12786 and NOAA 12790.
NOAA 12785, S22 W57 (X= 759,Y=-371). Alpha region. NOAA 12786, S17 W36 (X= 549,Y=-294). Beta region. C-class flare possible. NOAA 12790, S23 E53 (X=-718,Y=-387). Beta region. C-class flare possible. Positions as of December 2, 2020 at 16:30 UT. JV |
| BBSO Solar Activity Report 01 December 2020 16:19:43 UT |
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Solar activity is moderate.
Two C-class flares were observed overnight in the region near the SE
limb. So far this region has only shown a single alpha spot. STEREO A
and the UV limb images from SDO suggest there are additional spots
not yet visible. Further C-class activity seems likely.
Region NOAA 12786 has simplified somewhat, but a C-class event
is still possible. Regions NOAA 12787, NOAA 12788 and NOAA 12789 have decayed.
NOAA 12785, S22 W43 (X= 617,Y=-375). Alpha region. NOAA 12786, S17 W19 (X= 304,Y=-298). Beta region. C-class event possible. Unnumbered region, S22 E67 (X=-832,Y=-370). Alpha region. C-class event possible. Positions as of December 1, 2020 at 16:00 UT. JV
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