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Sunspot region AR11912

Number of
sunspots		 Size Class Magn. Class Spot Location
2013/12/03 1 80 HSX S21E66
2013/12/04 1 120 HSX S21E53
2013/12/05 1 110 HSX S21E40
2013/12/06 1 110 HSX S21E26
2013/12/07 1 130 CAO S21E17
2013/12/08 1 120 HSX S21E01
2013/12/09 1 120 HSX S21W12
2013/12/10 2 110 HSX S21W24
2013/12/11 1 80 HSX S21W38
2013/12/12 1 80 HSX S21W52
2013/12/13 1 80 HSX S21W64
2013/12/14 1 60 HSX S21W79
2013/12/16 1 60 HSX S21W0*
C
1

The top 1 solar flares from sunspot region 11912

Start Maximum End
1C6.642013/12/1203:1103:3603:58
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Lasco Coronagraph 12Incoming & Unnumbered Active Regions 1378AR 3953 1AR 3947 222Unspecified geomagnetic activity 1830
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Space weather facts

Last X-flare2025/01/04X1.85
Last M-flare2025/01/09M1.1
Last geomagnetic storm2025/01/04Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2024154.5 +2
January 2025155.9 +1.4
Last 30 days151.7 +31.8

This day in history*

Solar flares
12023X1.0
22023M5.15
32001M5.01
42000M4.8
52023M2.69
DstG
11983-213G4
21976-156G3
31962-92G2
41959-88G2
51997-78G2
*since 1994

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