Sunspot region AR13435

Number of
sunspots
Size Class Magn. Class Spot Location
2023/09/16 2 90 DSO N10E69
2023/09/17 3 110 DAO N10E55
2023/09/18 4 280 CKO N10E50
2023/09/19 4 280 DKO N09E42
2023/09/20 4 300 DKI N08E29
2023/09/21 4 290 DKI N09E17
2023/09/22 6 280 DKI N09E02
2023/09/23 10 270 DKI N09W11
2023/09/24 16 300 DKI N09W23
2023/09/25 12 300 DKI N10W37
2023/09/26 16 200 DAI N09W51
2023/09/27 7 190 DSO N10W64
2023/09/28 3 90 CSO N09W78
2023/09/29 1 50 HSX N10W91
2023/09/30 1 50 HSX N10W0*
CM
96

The top 10 solar flares from sunspot region 13435

Start Maximum End
1M8.722023/09/2112:4212:5413:02
2M8.22023/09/2014:1114:1914:25
3M4.02023/09/1920:0120:1420:21
4M1.82023/09/1909:2309:3809:44
5M1.22023/09/2202:2503:3604:33
6M1.12023/09/1903:4503:5504:01
7C9.72023/09/1922:2122:3722:47
8C7.32023/09/2211:2611:4411:54
9C3.52023/09/1715:5516:0416:10
10C3.52023/09/2419:5720:0420:08

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Space weather facts

Last X-flare2026/02/02X1.6
Last M-flare2026/02/03M1.7
Last geomagnetic storm2026/01/28Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
December 2025124 +32.2
February 2026114 -10
Last 30 days118.1 +6.2

This day in history*

Solar flares
12025M8.88
22025M6.1
32025M4.32
42001M3.53
52025M3.1
DstG
11992-170G4
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31982-82G1
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*since 1994

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