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Sunspot region AR13920

Number of
sunspots		 Size Class Magn. Class Spot Location
2024/12/08 6 90 CSI N22E52
2024/12/09 6 70 CSO N22E38
2024/12/10 12 60 DSO N22E24
2024/12/11 21 250 EKI N23E12
2024/12/12 18 200 EAI N22W04
2024/12/13 14 260 EKI N22W16
2024/12/14 12 180 EAO N23W27
2024/12/15 6 160 EAO N22W41
2024/12/16 5 140 DAO N24W57
2024/12/17 1 90 HSX N22W67
2024/12/18 1 60 HSX N22W81
2024/12/19 1 40 HSX N22W93
2024/12/20 1 40 HSX N22W0*
CM
232

The top 10 solar flares from sunspot region 13920

Start Maximum End
1M3.112024/12/1520:1520:2420:28
2M2.82024/12/1110:0310:0610:10
3C6.82024/12/1103:1903:2603:30
4C4.02024/12/1501:0901:1701:21
5C3.82024/12/1111:1611:2011:24
6C3.72024/12/1500:3301:0701:09
7C3.52024/12/1022:5322:5823:02
8C3.32024/12/1017:4317:4917:54
9C3.12024/12/1102:0802:1202:16
10C2.82024/12/1014:3614:4314:47
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Space weather facts

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 2026118.8 +32.8
Last 30 days102.1 +47

This day in history*

Solar flares
12001X1.14
22000M4.54
32003M3.68
42002M3.12
52002M1.68
DstG
11984-100G3
21971-97G2
32006-82G2
41959-73G2
51995-68G1
*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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