Sunspot region AR12905

Number of
sunspots
Size Class Magn. Class Spot Location
2021/12/12 2 30 CRO S10E44
2021/12/13 3 20 CRO S11E30
2021/12/14 1 10 HRX S11E17
2021/12/15 1 0 AXX S11E03
2021/12/16 1 10 AXX S12W11

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Space weather facts

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*

Solar flares
12011M5.77
21998M1.83
32001M1.76
42001M1.41
52011M1.22
DstG
11988-85
21998-57
31978-57G2
42014-49
52002-39
*since 1994

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