Region 8477

Number of
sunspots
Size Class Magn. Class Spot Location
1999/03/01 4 30 CSO S25E77
1999/03/02 5 100 DAO S26E64
1999/03/03 4 110 DSO S26E53
1999/03/04 5 110 DSO S26E40
1999/03/05 13 130 EAO S32E28
1999/03/06 21 150 EAO S26E15
1999/03/07 21 150 ESO S29E01
1999/03/08 17 90 CSO S25W10
1999/03/09 14 120 DSO S27W18
1999/03/10 17 100 DSO S28W33
1999/03/11 9 160 DAO S28W46
1999/03/12 7 200 CSO S29W58
1999/03/13 2 180 HHX S30W68
1999/03/14 2 170 HSX S28W82
1999/03/15 1 180 HAX S28W94
BC
12

The top 3 solar flares from sunspot region 8477

Start Maximum End
1C2.91999/03/0703:5404:0804:15
2C1.01999/03/0415:5916:0916:15
3B8.61999/03/1016:1016:1416:18

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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 2019:211
Current stretch spotless days:13

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*since 1994

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