Region 10521

Number of
sunspots
Size Class Magn. Class Spot Location
2003/12/11 2 60 DAO S11E82
2003/12/12 3 110 DSO S11E63
2003/12/13 4 90 CSO S12E48
2003/12/14 4 80 DSO S12E34
2003/12/15 4 50 DSO S12E21
2003/12/16 3 40 DSO S12E09
2003/12/17 6 50 DSO S11W05
2003/12/18 5 20 CRO S11W20
2003/12/19 3 20 HSX S12W34
2003/12/20 2 10 BXO S12W47
C
1

The top 1 solar flares from sunspot region 10521

Start Maximum End
1C1.02003/12/1713:0313:0913:16

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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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