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Sunspot region AR13788

Number of
sunspots		 Size Class Magn. Class Spot Location
2024/08/11 7 140 CAO S06E64
2024/08/12 12 150 DAO S08E47
2024/08/13 10 100 DAO S08E36
2024/08/14 7 130 DSO S08E21
2024/08/15 4 100 CSO S07E09
2024/08/16 3 120 CSO S08W04
2024/08/17 3 130 CSO S08W18
2024/08/18 1 100 HSX S08W35
2024/08/19 1 90 HSX S08W48
2024/08/20 1 90 HSX S08W62
2024/08/21 1 40 HSX S08W75
2024/08/22 1 50 HSX S08W86
2024/08/23 1 50 HSX S08W0*
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X1.9 CME 1338AR4366 3CH 17 14Do the high-resolution sunspot counts point to more complex sunspots? 36Broad-spectrum aurora pillars 44
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Space weather facts

Last X-flare2026/01/18X1.9
Last M-flare2026/01/21M3.4
Last geomagnetic storm2026/01/28Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2025124 +32.2
January 2026119 -5
Last 30 days119 +0.7

This day in history*

Solar flares
12025M6.76
22002M5.2
32025M1.8
42014M1.67
52025M1.09
DstG
11993-85G2
21982-81G2
31963-75G2
41977-69G1
51978-64
*since 1994

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