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Sunspot region AR13917

Number of
sunspots		 Size Class Magn. Class Spot Location
2024/12/04 5 30 CAO S09E61
2024/12/05 6 90 DRI S08E51
2024/12/06 7 180 DAO S09E38
2024/12/07 12 200 DAC S07E23
2024/12/08 15 210 DAC S09E11
2024/12/09 12 220 DAO S08W02
2024/12/10 20 230 EAC S08W15
2024/12/11 23 280 DKI S08W28
2024/12/12 23 280 DKI S08W42
2024/12/13 13 260 DKC S08W56
2024/12/14 9 270 DKO S07W68
2024/12/15 6 260 DKO S07W82
2024/12/16 4 160 CAO S07W91
2024/12/17 4 160 CAO S07W0*
CM
596

The top 10 solar flares from sunspot region 13917

Start Maximum End
1M3.22024/12/0721:5322:1522:26
2M2.32024/12/0713:0013:0813:15
3M2.12024/12/1311:1311:2411:30
4M1.472024/12/0420:5721:0521:12
5M1.222024/12/0609:0609:2009:42
6M1.02024/12/0506:5607:0907:33
7C9.82024/12/1317:1317:2017:27
8C7.62024/12/1520:2121:0121:15
9C7.22024/12/1509:2709:4009:47
10C6.32024/12/0718:2018:2618:32
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Last X-flare2025/01/04X1.85
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Last geomagnetic storm2025/02/19Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
January 2025137 -17.5
February 2025151.4 +14.4
Last 30 days149 -14

This day in history*

Solar flares
12024X6.37
22024X1.70
32002M6.4
42024M4.8
52023M2.6
DstG
11994-144G4
21988-130G3
31973-107G2
41979-97G1
51992-97G1
*since 1994

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