Sunspot region AR13900

Number of
sunspots
Size Class Magn. Class Spot Location
2024/11/18 1 10 HRX N24E62
2024/11/19 1 30 CRO N22E47
2024/11/20 1 20 HAX N22E34
2024/11/21 1 20 HSX N22E21
2024/11/22 2 10 CAO N21E07
2024/11/23 2 10 BXO N23W08
2024/11/24 2 10 AXX N22W22
C
1

The top 1 solar flares from sunspot region 13900

Start Maximum End
1C2.32024/11/1804:0004:0904:20
Currently there's no noteworthy space weather

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Latest alerts

Friday, 21 February 2025
14:54 UTC - Solar flare

Moderate M1.41 flare

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14:39 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.41)


12:33 UTC - Solar flare

Moderate M3.39 flare

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12:18 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M3.39)


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Space weather facts

Last X-flare2025/01/04X1.85
Last M-flare2025/02/21M1.4
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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