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Sunspot region AR13978

Number of
sunspots		 Size Class Magn. Class Spot Location
2025/01/28 1 100 HAX N11E80
2025/01/29 2 100 HAX N11E66
2025/01/30 2 130 CAO N11E52
2025/01/31 6 180 DAO N11E38
2025/02/01 6 180 DAI N11E24
2025/02/02 10 200 DAI N11E10
2025/02/03 10 200 DAI N11W02
2025/02/04 12 250 DKO N11W16
2025/02/05 7 200 DAO N12W29
2025/02/06 4 50 HAX N12W43
2025/02/07 6 280 CKO N11W55
2025/02/08 6 280 CKO N14W67
2025/02/09 1 30 HRX N14W81
2025/02/10 1 30 HRX N11W94
2025/02/11 1 30 HRX N11W0*
CM
132

The top 10 solar flares from sunspot region 13978

Start Maximum End
1M6.762025/01/3113:4014:0614:25
2M2.312025/02/0623:1223:2723:39
3C8.42025/02/0402:4602:5202:57
4C5.92025/01/2921:3922:0922:27
5C5.92025/02/0321:2421:3521:44
6C4.02025/02/0111:2511:3211:37
7C3.62025/02/0600:2900:4401:02
8C3.22025/02/0821:5722:0522:10
9C3.22025/02/0704:1904:3104:38
10C2.92025/02/0723:0323:1323:17
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Space weather facts

Last X-flare2026/04/24X2.5
Last M-flare2026/04/28M1.11
Last geomagnetic storm2026/04/20Kp5 (G1)
Spotless days
Last 365 days3 days
20263 days (2%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
April 202679.3 -6.6
May 2026145.5 +66.2
Last 30 days91 -4.3

This day in history*

Solar flares
12024X1.6
22022X1.1
32013M8.19
42023M7.2
51999M6.41
DstG
11967-123G3
21978-114G3
31976-107G4
41994-79G2
51977-77G1
*since 1994

Aurora on this day in history

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