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Sunspot region AR13781

Number of
sunspots		 Size Class Magn. Class Spot Location
2024/08/04 2 210 HAX N15E80
2024/08/05 2 160 DSO N13E64
2024/08/06 2 160 DAO N13E53
2024/08/07 7 140 DSO N16E35
2024/08/08 5 160 DSC N14E26
2024/08/09 14 220 DSO N14E12
2024/08/10 4 160 CSO N14W01
2024/08/11 4 150 CSO N14W13
2024/08/12 2 130 HSX N13W32
2024/08/13 3 120 CSO N15W44
2024/08/14 1 90 HSX N17W57
2024/08/15 1 70 HSX N15W69
2024/08/16 1 50 HSX N16W83
2024/08/17 1 50 HSX N16W95
CM
77

The top 10 solar flares from sunspot region 13781

Start Maximum End
1M1.92024/08/0410:2710:5011:24
2M1.52024/08/0401:4501:5902:17
3M1.22024/08/0409:3509:4409:48
4M1.12024/08/0602:5003:0303:08
5M1.12024/08/0704:5204:5705:01
6M1.012024/08/0912:3812:4312:51
7M1.02024/08/0812:5613:0013:04
8C7.92024/08/0800:1200:3400:49
9C7.62024/08/0914:1414:2014:24
10C7.42024/08/0807:0907:1907:30
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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/04M1.0
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 2026133.3 +47.4
Last 30 days96.9 +35.1

This day in history*

Solar flares
12001X1.21
22001M7.3
32001M4.52
42013M3.28
52004M2.47
DstG
11993-165G3
21968-112G3
31978-109G1
41984-108G2
51989-101G2
*since 1994

Aurora on this day in history

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