Sunspot region AR8650

Number of
sunspots
Size Class Magn. Class Spot Location
1999/07/28 1 40 HAX N17E75
1999/07/29 1 70 HSX N16E64
1999/07/30 4 50 CSO N17E50
1999/07/31 1 50 HSX N16E36
1999/08/01 7 90 DSO N18E23
1999/08/02 12 50 CSO N18E10
1999/08/03 6 40 CSO N18W04
1999/08/04 5 40 CSO N18W18
1999/08/05 1 30 HSX N18W30
1999/08/06 1 40 HSX N17W43
1999/08/07 1 30 HSX N17W56
1999/08/08 1 30 HSX N17W69
1999/08/09 1 40 HSX N17W83
1999/08/10 1 0 AXX N18W93

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Last X-flare2024/12/08X2.2
Last M-flare2024/12/24M1.0
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024110.7 -41.8
Last 30 days116.5 -41.7

This day in history*

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*since 1994

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