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Sunspot region AR10402

Number of
sunspots		 Size Class Magn. Class Spot Location
2003/07/08 5 20 CSO S12W44
2003/07/09 14 180 DSO S12W58
2003/07/10 10 150 DSO S12W70
2003/07/11 10 170 CAO S12W82
2003/07/12 3 80 HAX S12W96
BC
14

The top 5 solar flares from sunspot region 10402

Start Maximum End
1C7.462003/07/0807:2107:3007:37
2C4.632003/07/0816:0716:2616:40
3C3.492003/07/0914:3914:4615:38
4C1.362003/07/0805:5006:0206:10
5B9.362003/07/0815:5415:5716:01
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Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/03Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 202697.2 +11.3
Last 30 days95.6 +37.2

This day in history*

Solar flares
12025M3.24
22024M2.41
32025M2.31
42025M1.6
52025M1.41
DstG
11981-311G4
21990-108G1
31973-84G3
42001-77G3
51969-64
*since 1994

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