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Sunspot region AR13811

Number of
sunspots		 Size Class Magn. Class Spot Location
2024/08/31 1 120 HSX S09E73
2024/09/01 4 220 CSO S09E59
2024/09/02 6 220 CSO S10E42
2024/09/03 6 220 CAO S10E24
2024/09/04 11 290 DKI S12E18
2024/09/05 12 240 DSI S11E04
2024/09/06 21 290 EHI S09W13
2024/09/07 9 250 CHO S10W23
2024/09/08 9 240 DSO S10W36
2024/09/09 19 230 DSI S10W55
2024/09/10 8 240 DSI S10W69
2024/09/11 5 160 DSO S13W77
2024/09/12 7 150 DSI S10W95
2024/09/13 7 150 DSI S13W0*
CM
715

The top 10 solar flares from sunspot region 13811

Start Maximum End
1M6.82024/09/1214:3114:4314:47
2M5.42024/09/1306:3806:5607:03
3M5.22024/09/1307:0307:0807:12
4M5.02024/09/1223:4900:1200:32
5M2.72024/09/1206:0406:1806:29
6M2.32024/09/1304:5805:0005:07
7M1.62024/09/1117:1617:2617:32
8M1.62024/09/1301:2901:3701:53
9M1.52024/09/1300:4600:5601:05
10M1.52024/09/0815:0715:3015:56
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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/04M7.6
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 2026133.3 +47.4
Last 30 days96.1 +32

This day in history*

Solar flares
12002M8.82
22026M7.6
31999M6.76
42001M2.91
52003M2.74
DstG
11979-202G3
21988-133G3
31984-120G4
42004-117G2
51994-111G3
*since 1994

Aurora on this day in history

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