Sunspot region AR10540

Number of
sunspots
Size Class Magn. Class Spot Location
2004/01/13 6 60 HHX S11E76
2004/01/14 7 500 EAO S11E68
2004/01/15 4 180 EAO S13E59
2004/01/16 10 300 ESO S13E43
2004/01/17 13 350 EAO S13E28
2004/01/18 9 350 ESO S14E15
2004/01/19 36 330 FKO S14E02
2004/01/20 30 300 FKO S14W10
2004/01/21 23 220 EAO S14W22
2004/01/22 22 220 ESO S14W35
2004/01/23 5 100 ESO S14W48
2004/01/24 3 80 CSO S14W61
2004/01/25 1 110 HSX S14W81
2004/01/26 1 60 HSX S15W91
BCM
11176

The top 10 solar flares from sunspot region 10540

Start Maximum End
1M8.822004/01/2007:2907:4307:47
2M7.262004/01/1717:3517:5017:59
3M2.112004/01/1800:0700:1700:21
4M1.542004/01/1905:2505:3205:35
5M1.522004/01/1912:3012:4012:46
6M1.182004/01/1919:5420:0220:08
7C4.72004/01/1506:2006:3206:37
8C2.572004/01/1902:2602:3102:35
9C2.372004/01/1703:3503:4804:00
10C2.242004/01/1712:4312:4912:54

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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 2026114.3 +28.4
Last 30 days102.4 +48.5

This day in history*

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12001X3.14
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32023M2.83
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52000M1.23
DstG
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*since 1994

Aurora on this day in history

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