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Sunspot region AR11931

Number of
sunspots		 Size Class Magn. Class Spot Location
2013/12/19 1 100 HAX S14E76
2013/12/20 1 210 HAX S15E62
2013/12/22 2 220 HSX S15E36
2013/12/23 1 170 HSX S15E21
2013/12/24 1 190 HAX S14E08
2013/12/25 1 210 HAX S15W04
2013/12/26 5 230 HAX S16W16
2013/12/27 3 170 CAO S15W29
2013/12/28 3 160 CAO S15W43
2013/12/29 1 140 HSX S15W58
2013/12/30 1 110 HSX S14W73
2013/12/31 1 130 HAX S14W87
2014/01/01 1 130 HAX S14W0*
C
2

The top 2 solar flares from sunspot region 11931

Start Maximum End
1C3.152013/12/2606:5507:0207:07
2C1.892013/12/1919:0819:1219:15
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Last X-flare2025/01/04X1.85
Last M-flare2025/01/21M3.3
Last geomagnetic storm2025/01/04Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2024154.5 +2
January 2025145.2 -9.3
Last 30 days163.2 +45.8

This day in history*

Solar flares
12024M3.45
21999M2.14
32024M2.11
42024M2.07
52015M2.03
DstG
11957-235G4
22004-130G3
32005-97G2
42000-91G1
52012-70G1
*since 1994

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