Sunspot region AR13935

Number of
sunspots
Size Class Magn. Class Spot Location
2024/12/22 1 140 HSX S18E67
2024/12/23 2 150 CSO S20E56
2024/12/24 2 150 CSO S18E40
2024/12/25 2 150 CSO S18E29
2024/12/26 2 150 CAO S18E15
2024/12/27 1 60 HSX S19E01
2024/12/28 1 80 HSX S18W13
2024/12/29 1 60 HSX S19W26
2024/12/30 1 70 HSX S18W38
2024/12/31 1 70 HAX S17W52
2025/01/01 1 50 HSX S19W65
2025/01/02 1 50 HSX S19W78
2025/01/03 1 60 HSX S18W91
2025/01/04 1 60 HSX S18W0*

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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/19Kp6- (G2)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 202681 -4.9
Last 30 days92.5 +30.9

This day in history*

Solar flares
12022X2.25
22022M7.29
32001M5.99
41998M1.96
52022M1.9
DstG
12002-149G3
21985-124G3
31981-97G2
41973-76G2
51975-70G2
*since 1994

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