Sunspot region AR12418

Number of
sunspots
Size Class Magn. Class Spot Location
2015/09/15 1 200 HSX S15E56
2015/09/16 1 200 HSX S15E42
2015/09/17 1 250 HHX S16E30
2015/09/18 4 210 CSO S14E19
2015/09/19 5 230 CHO S14E05
2015/09/20 6 230 CHO S14W07
2015/09/21 5 210 CAO S15W21
2015/09/22 4 180 CAO S15W35
2015/09/23 3 170 CAO S15W49
2015/09/24 3 170 CAO S15W49
2015/09/25 2 140 HAX S16W77
2015/09/26 2 60 HAX S15W88
2015/09/27 2 60 HAX S15W0*

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Space weather facts

Last X-flare2024/12/30X1.1
Last M-flare2025/01/02M1.1
Last geomagnetic storm2025/01/01Kp8 (G4)
Spotless days
Current stretch2 days
Monthly mean Sunspot Number
December 2024154.5 +2
January 2025163 +8.5
Last 30 days139.1 +5.8

This day in history*

Solar flares
11998M3.7
22014M1.65
32015M1.64
42014M1.49
52001M1.44
DstG
11988-66
21968-63
31979-59
41990-51G1
51957-50
*since 1994

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