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Sunspot region AR13990

Number of
sunspots		 Size Class Magn. Class Spot Location
2025/02/10 3 220 CAO S09E68
2025/02/11 3 260 DKO S09E54
2025/02/12 7 260 DKO S09E40
2025/02/13 7 310 CKI S09E26
2025/02/14 8 310 DKI S09E12
2025/02/15 18 310 CKI S10W01
2025/02/16 42 280 CKI S09W14
2025/02/17 17 250 CKO S08W28
2025/02/18 12 250 CKO S09W37
2025/02/19 6 250 CKO S09W51
2025/02/20 6 250 CKO S09W64
2025/02/21 3 120 CSO S09W78
2025/02/22 2 120 CSO S09W92
2025/02/23 2 120 CSO S09W0*
CM
162

The top 10 solar flares from sunspot region 13990

Start Maximum End
1M1.82025/02/1420:4520:5721:05
2M1.22025/02/1409:4810:0610:19
3C9.02025/02/1322:1622:4323:10
4C5.82025/02/2111:1211:1911:25
5C5.62025/02/1800:4601:0801:26
6C3.62025/02/2118:5018:5919:05
7C3.42025/02/1910:0410:1610:32
8C3.32025/02/2207:0007:0507:09
9C3.22025/02/1122:1722:4623:30
10C3.22025/02/2201:4201:4801:53
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Last X-flare2025/03/28X1.1
Last M-flare2025/04/15M1.2
Last geomagnetic storm2025/04/16Kp8- (G4)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
March 2025134.2 -20.4
April 2025120.5 -13.7
Last 30 days116.6 -25.7

This day in history*

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12014X1.05
22016M9.63
32024M2.2
42022M1.9
52024M1.6
DstG
11965-162G4
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*since 1994

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