Region 11428

Number of
sunspots
Size Class Magn. Class Spot Location
2012/03/04 4 40 CRO S17E51
2012/03/05 6 70 DSO S17E37
2012/03/06 14 250 DAI S17E21
2012/03/07 17 250 DAI S16E09
2012/03/08 16 300 DKO S17W05
2012/03/09 8 180 DAO S17W19
2012/03/10 12 110 DSO S17W32
2012/03/11 14 60 CRO S17W46
2012/03/12 3 30 CAO S15W60
2012/03/13 1 30 HSX S15W72
C
4

The top 4 solar flares from sunspot region 11428

Start Maximum End
1C7.22012/03/0802:4902:5302:56
2C5.12012/03/0921:4521:5021:56
3C1.92012/03/1006:5307:0207:06
4C1.62012/03/1104:2604:2804:32

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/09/28Kp5 (G1)
Number of spotless days in 2019:215
Current stretch spotless days:17

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*since 1994

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