Sunspot region AR11875

Number of
sunspots
Size Class Magn. Class Spot Location
2013/10/18 2 50 CAO N07E69
2013/10/19 10 150 DAO N07E60
2013/10/20 15 150 ESI N08E46
2013/10/21 24 150 EAI N07E32
2013/10/22 61 250 EKC N06E19
2013/10/23 123 420 EKC N07E04
2013/10/24 50 610 EKC N08W11
2013/10/25 50 720 EKC N08W23
2013/10/26 39 660 EKC N07W36
2013/10/27 38 660 EKC N07W51
2013/10/28 38 660 EKC N07W51
2013/10/29 15 770 EKC N06W78
2013/10/30 10 420 EKC N06W92
2013/10/31 10 420 EKC N06W0*
CMX
54142

The top 10 solar flares from sunspot region 11875

Start Maximum End
1X3.372013/10/2921:4221:5422:01
2X1.472013/10/2801:4102:0302:12
3M7.372013/10/2804:3204:4104:46
4M6.082013/10/2221:1521:2021:22
5M5.142013/10/2410:3010:3310:37
6M4.492013/10/2423:5800:0800:16
7M4.042013/10/2814:0014:0514:12
8M3.952013/10/2320:4120:5320:59
9M3.682013/10/2409:5910:0910:17
10M2.172013/10/2820:4820:5721:02
The strength of the interplanetary magnetic field is moderate (10.24nT), the direction is North (3.57nT).
The maximum X-ray flux of the past two hours is:
M6.17

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Latest alerts

13:39 UTC - Solar flare

Strong M6.17 flare from sunspot region 3981

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13:21 UTC - Radio Blackout

Moderate R2 radio blackout in progress (≥M5 - current: M6.1)


13:18 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M3.66)


09:33 UTC - Solar flare

Moderate M1.42 flare

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09:15 UTC - Radio Blackout

Minor R1 radio blackout in progress (≥M1 - current: M1.25)


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Space weather facts

Last X-flare2025/01/04X1.85
Last M-flare2025/02/03M1.4
Last geomagnetic storm2025/01/04Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2024154.5 +2
February 2025150.5 -4
Last 30 days142.5 +0.6

This day in history*

Solar flares
12025M8.7
22001M3.53
32025M3.1
42025M2.5
52025M1.4
DstG
11992-170G4
21969-161G2
31982-82G1
41989-74G2
52022-66G1
*since 1994

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