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Sunspot region AR11920

Number of
sunspots		 Size Class Magn. Class Spot Location
2013/12/10 1 70 HSX N12E71
2013/12/11 1 60 HAX N12E57
2013/12/12 1 90 HAX N12E44
2013/12/13 2 80 HAX N13E31
2013/12/14 2 70 HAX N12E18
2013/12/15 5 70 HAX N12E05
2013/12/16 3 50 HSX N13W07
2013/12/17 2 40 HSX N12W21
2013/12/18 2 40 HSX N12W21
2013/12/19 1 50 HSX N12W48
2013/12/20 2 60 CSO N13W62
2013/12/22 1 30 HAX N13W88
2013/12/23 1 30 HAX N13W0*
C
3

The top 3 solar flares from sunspot region 11920

Start Maximum End
1C2.732013/12/1010:4110:4510:49
2C2.552013/12/0915:4915:5215:55
3C1.742013/12/1322:5522:5823:02
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Strong far side CME 329Unspecified geomagnetic activity 1749Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 9Filaments and prominences 595Incoming & Unnumbered Active Regions 1351
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Last X-flare2024/12/08X2.2
Last M-flare2024/12/22M1.0
Last geomagnetic storm2024/12/17Kp5+ (G1)
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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