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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Space weather facts

Last X-flare2024/11/06X2.39
Last M-flare2024/11/13M1.7
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024166 -0.4
Last 30 days163.2 +18.4

This day in history*

Solar flares
11999X1.15
21999M8.06
32005M5.58
41999M4.11
52005M3.72
DstG
11960-167G3
21998-109G2
32012-108G2
41989-105
51979-90G1
*since 1994

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