Sunspot region AR11640

Number of
sunspots
Size Class Magn. Class Spot Location
2012/12/31 2 40 DSO N28E20
2013/01/01 11 80 CAO N28E06
2013/01/02 23 180 DAI N28W06
2013/01/03 18 220 EAI N28W21
2013/01/04 28 240 EAI N28W35
2013/01/05 24 320 EKI N28W48
2013/01/06 11 330 EKI N28W62
2013/01/07 4 360 EHO N28W75
2013/01/08 5 300 EHO N28W87
BC
410

The top 10 solar flares from sunspot region 11640

Start Maximum End
1C5.782013/01/0819:0419:1219:19
2C4.52013/01/0708:4408:5208:57
3C3.182013/01/0723:4423:5700:04
4C2.432013/01/0321:2721:3821:45
5C1.792013/01/0400:4500:5301:09
6C1.722013/01/0108:4709:0609:13
7C1.532013/01/0706:3506:3906:46
8C1.332013/01/0321:0121:0821:17
9C1.262012/12/3122:1222:1722:22
10C1.162013/01/0402:0602:1202:17
The maximum X-ray flux of the past two hours is:
M6.17

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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*

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*since 1994

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