Sunspot region AR12681

Number of
sunspots
Size Class Magn. Class Spot Location
2017/09/21 1 60 HSX S12E73
2017/09/22 1 80 HSX S13E59
2017/09/23 1 80 HSX S13E46
2017/09/24 2 90 CSO S13E32
2017/09/25 1 90 HSX S13E19
2017/09/26 3 100 CSO S12E04
2017/09/27 7 120 CSO S15W09
2017/09/28 1 80 HSX S13W21
2017/09/29 1 70 HSX S14W35
2017/09/30 1 70 HSX S14W48
2017/10/01 1 60 HSX S14W61
2017/10/02 1 60 HSX S14W74
B
4

The top 4 solar flares from sunspot region 12681

Start Maximum End
1B8.182017/09/2514:3515:1415:32
2B7.782017/09/2502:1402:3502:46
3B3.812017/09/2814:0914:3415:33
4B3.472017/09/2423:2023:2723:37

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Space weather facts

Last X-flare2025/06/19X1.9
Last M-flare2025/10/03M1.2
Last geomagnetic storm2025/10/03Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
September 2025129.8 -3.7
October 2025140.1 +10.3
Last 30 days131.3 -1.2

This day in history*

Solar flares
12012M3.35
22024M1.2
31999C9.19
42024C8.0
52023C6.6
DstG
12024-153G3
21960-112G1
32002-108G2
42012-99G2
52015-97G2
*since 1994

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