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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-flare2024/05/15X2.9
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Last geomagnetic storm2024/05/17Kp6 (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2024136.5 +31.6
May 2024157.5 +21
Last 30 days168.7 +50.9

This day in history*

Solar flares
12002X3.07
22001M9.22
32023M8.96
42002M7.2
52002M6.81
ApG
1198143G2
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3202332G2
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*since 1994

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