Sunspot region AR8470

Number of
sunspots
Size Class Magn. Class Spot Location
1999/02/23 4 10 BXO S23E72
1999/02/24 3 90 DAO S24E59
1999/02/25 5 60 DSO S24E45
1999/02/26 9 40 CAO S23E32
1999/02/27 4 40 CSO S24E19
1999/02/28 1 30 HSX S23E04
1999/03/01 1 10 HSX S23W10
B
1

The top 1 solar flares from sunspot region 8470

Start Maximum End
1B5.211999/02/2607:4607:5007:56

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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 2024142.9 -23.5
Last 30 days155.8 +4.5

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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