Sunspot region AR8741

Number of
sunspots
Size Class Magn. Class Spot Location
1999/10/23 7 80 CAO S25E64
1999/10/24 17 210 EAO S25E50
1999/10/25 17 220 EAO S26E36
1999/10/26 18 280 EAO S25E22
1999/10/27 11 140 EAO S25E09
1999/10/28 19 190 EAO S25W03
1999/10/29 19 150 EAO S25W16
1999/10/30 22 200 EAI S24W29
1999/10/31 13 150 EAO S24W42
1999/11/01 7 140 EAC S25W54
1999/11/02 5 150 EAO S25W67
1999/11/03 4 100 DAO S25W80
C
11

The top 10 solar flares from sunspot region 8741

Start Maximum End
1C4.061999/10/2305:5906:0306:09
2C3.491999/10/2309:4909:5209:58
3C3.431999/10/2312:4312:4812:50
4C3.171999/10/2316:4216:5516:59
5C3.161999/10/2505:2405:2905:34
6C3.111999/10/2416:0216:0616:08
7C1.691999/10/2502:2102:2402:26
8C1.431999/11/0121:1921:2221:24
9C1.351999/11/0122:3122:3522:39
10C1.281999/11/0121:1321:1621:19

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Last X-flare2025/06/19X1.9
Last M-flare2025/10/03M1.2
Last geomagnetic storm2025/10/03Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
September 2025129.8 -3.7
October 2025140.1 +10.3
Last 30 days131.3 -1.2

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