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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-flare2024/12/08X2.2
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Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024103.3 -49.2
Last 30 days115.4 -40.8

This day in history*

Solar flares
11999M7.71
22013M4.82
32023M3.33
42013M2.8
51999M2.61
DstG
11982-101G3
22014-71G1
32001-59
41987-59
51989-58G1
*since 1994

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