Sunspot region AR8557

Number of
sunspots
Size Class Magn. Class Spot Location
1999/05/28 5 90 DSO S28E73
1999/05/29 4 30 DRO S29E56
1999/05/30 7 130 CAO S30E46
1999/05/31 5 70 DAO S30E34
1999/06/01 5 30 HAX S30E21
1999/06/02 9 20 CRO S29E08
1999/06/03 4 10 BXO S27W06
C
3

The top 3 solar flares from sunspot region 8557

Start Maximum End
1C8.911999/05/2715:1515:3516:03
2C3.141999/05/2811:3012:1312:42
3C1.861999/06/0112:3112:3412:37

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Last X-flare2024/11/06X2.39
Last M-flare2024/11/20M1.1
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024142.7 -23.8
Last 30 days156.1 +4.7

This day in history*

Solar flares
11998X5.37
21998X3.59
32001X1.41
42001M5.51
51998M2.7
DstG
11991-139G2
21982-114G2
31975-97G2
42003-87G2
51960-76G2
*since 1994

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