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Sunspot region AR13917

Number of
sunspots		 Size Class Magn. Class Spot Location
2024/12/04 5 30 CAO S09E61
2024/12/05 6 90 DRI S08E51
2024/12/06 7 180 DAO S09E38
2024/12/07 12 200 DAC S07E23
2024/12/08 15 210 DAC S09E11
2024/12/09 12 220 DAO S08W02
2024/12/10 20 230 EAC S08W15
2024/12/11 23 280 DKI S08W28
2024/12/12 23 280 DKI S08W42
2024/12/13 13 260 DKC S08W56
2024/12/14 9 270 DKO S07W68
2024/12/15 6 260 DKO S07W82
2024/12/16 4 160 CAO S07W91
2024/12/17 4 160 CAO S07W0*
CM
596

The top 10 solar flares from sunspot region 13917

Start Maximum End
1M3.22024/12/0721:5322:1522:26
2M2.32024/12/0713:0013:0813:15
3M2.12024/12/1311:1311:2411:30
4M1.472024/12/0420:5721:0521:12
5M1.222024/12/0609:0609:2009:42
6M1.02024/12/0506:5607:0907:33
7C9.82024/12/1317:1317:2017:27
8C7.62024/12/1520:2121:0121:15
9C7.22024/12/1509:2709:4009:47
10C6.32024/12/0718:2018:2618:32
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Space weather facts

Last X-flare2026/04/24X2.5
Last M-flare2026/04/26M6.0
Last geomagnetic storm2026/04/20Kp5 (G1)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 202685 -0.9
Last 30 days90.9 +8.3

This day in history*

Solar flares
11998X1.54
22006X1.13
32024M3.1
42003M2.46
52024M2.1
DstG
11960-100G3
21989-98G2
31981-95G2
41984-91G1
51979-84G1
*since 1994

Aurora on this day in history

No observations submitted for this day in history. If you've observed the aurora and you have some amazing photos to show off, submit your observations now!
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