Sunspot region AR8309

Number of
sunspots
Size Class Magn. Class Spot Location
1998/08/20 2 0 AXX N18E28
1998/08/21 9 30 BXO N17E15
1998/08/22 8 50 DSO N16E02
1998/08/23 8 60 DAO N16W13
1998/08/24 13 70 ESO N15W26
1998/08/25 13 70 CAO N16W39
1998/08/26 11 130 EAO N19W51
1998/08/27 6 90 ESO N15W66
1998/08/28 3 50 CSO N17W81
B
1

The top 1 solar flares from sunspot region 8309

Start Maximum End
1B9.691998/08/2302:2902:4102:49

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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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