Sunspot region AR8639

Number of
sunspots
Size Class Magn. Class Spot Location
1999/07/20 5 10 BXO N38W14
1999/07/21 5 20 BXO N39W26
1999/07/22 11 50 DSO N38W37
1999/07/23 12 400 DAI N38W50
1999/07/24 13 390 DKO N38W62
1999/07/25 14 290 DAO N38W74
1999/07/26 8 230 DAO N38W87
CM
12

The top 3 solar flares from sunspot region 8639

Start Maximum End
1M3.441999/07/2513:0813:3814:17
2M1.11999/07/2420:4020:4820:59
3C3.691999/07/2202:3202:3902:46

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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
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*since 1994

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