Sunspot region AR8991

Number of
sunspots
Size Class Magn. Class Spot Location
2000/05/09 2 20 AXX N16E71
2000/05/10 5 80 CSO N15E59
2000/05/11 8 110 CSO N15E46
2000/05/12 10 100 CAO N16E33
2000/05/13 9 60 CAO N15E20
2000/05/14 9 40 CSO N15E07
2000/05/15 5 20 CSO N16W09
2000/05/16 3 10 BXO N17W23
2000/05/17 4 10 BXO N16W35
2000/05/18 2 0 AXX N16W40
C
2

The top 2 solar flares from sunspot region 8991

Start Maximum End
1C2.612000/05/0918:3018:3618:47
2C1.312000/05/0916:3516:3916:43

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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
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*since 1994

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