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Sunspot region AR13425

Number of
sunspots		 Size Class Magn. Class Spot Location
2023/09/06 7 40 CSO N23E70
2023/09/07 8 60 DAO N23E52
2023/09/08 15 140 DAI N24E43
2023/09/09 13 120 DAI N23E30
2023/09/10 13 110 EAI N20E13
2023/09/11 24 100 EAI N27W01
2023/09/12 24 90 EAI N24W11
2023/09/13 17 70 EAO N25W25
2023/09/14 16 70 EAO N23W41
2023/09/15 8 40 CSO N23W55
2023/09/16 6 30 CRO N25W66
2023/09/17 6 20 CAO N25W79
2023/09/18 3 80 DAO N23W83
2023/09/19 1 60 HSX N24W88
2023/09/20 1 60 HSX N24W0*
2023/09/21 1 60 HSX N24W0*
CM
172

The top 10 solar flares from sunspot region 13425

Start Maximum End
1M2.122023/09/0718:5819:0919:24
2M1.922023/09/1204:1804:2604:31
3C8.12023/09/1121:0721:1421:24
4C5.52023/09/1117:1617:3517:46
5C4.72023/09/1000:5401:0701:19
6C4.72023/09/1215:0715:2415:35
7C4.02023/09/0804:1604:4204:56
8C3.72023/09/0811:1411:1711:21
9C3.62023/09/1211:0611:1211:17
10C2.92023/09/1418:4018:4518:50
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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 202692 +6.1
Last 30 days94.7 +34.5

This day in history*

Solar flares
12001X20.6
22000M6.14
32002M5.32
42024M4.02
52000M3.24
DstG
11971-143G3
21961-118G4
31989-95G1
41990-80G1
51973-71
*since 1994

Aurora on this day in history

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