Sunspot region AR11740

Number of
sunspots
Size Class Magn. Class Spot Location
2013/05/04 1 30 HSX S20E64
2013/05/05 1 20 HRX S21E50
2013/05/06 3 20 CAO S21E36
2013/05/07 2 10 HSX S21E22
2013/05/08 2 10 AXX S21E08
2013/05/10 4 10 BXO S21W15
2013/05/11 1 10 AXX S21W26
2013/05/12 1 10 AXX S21W39
2013/05/13 1 10 AXX S21W39
C
1

The top 1 solar flares from sunspot region 11740

Start Maximum End
1C1.42013/05/0601:4101:4601:51

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Space weather facts

Last X-flare2025/12/08X1.1
Last M-flare2025/12/31M7.11
Last geomagnetic storm2025/12/22Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2025124 +32.2
January 2026120 -4
Last 30 days110.6 +7.8

This day in history*

Solar flares
12025X1.2
22025X1.1
32025M5.8
41998M3.7
52025M2.3
DstG
11988-66
21968-63
31979-59
41990-51G1
51957-50
*since 1994

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