Sunspot region AR10400

Number of
sunspots
Size Class Magn. Class Spot Location
2003/07/02 1 80 HSX N05E69
2003/07/03 13 90 DSO N04E58
2003/07/04 22 100 DSI N05E44
2003/07/05 23 230 DAO N05E31
2003/07/06 15 280 DKI N05E18
2003/07/07 26 290 EKI N05E03
2003/07/08 22 210 EAI N05W10
2003/07/09 28 220 EKI N05W23
2003/07/10 25 150 EAO N05W37
2003/07/11 25 120 EAI N06W51
2003/07/12 12 110 EAI N06W65
2003/07/13 7 50 BXO N05W78
CM
122

The top 10 solar flares from sunspot region 10400

Start Maximum End
1M3.342003/07/0600:0600:3200:40
2M1.022003/07/0414:3514:5515:20
3C7.792003/07/0222:0622:2222:40
4C4.732003/07/0314:4914:5815:09
5C4.152003/07/1003:1903:4203:50
6C2.52003/07/0523:3023:3523:38
7C2.32003/07/0215:3715:4615:52
8C2.262003/07/0802:4402:5103:01
9C1.832003/07/0301:0601:1301:17
10C1.562003/07/0604:0504:0804:10

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Last X-flare2026/02/03X1.5
Last M-flare2026/02/03M3.4
Last geomagnetic storm2026/01/28Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2025124 +32.2
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Last 30 days120.6 +10.9

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