Sunspot region AR8662

Number of
sunspots
Size Class Magn. Class Spot Location
1999/08/07 6 20 CRO S16E60
1999/08/08 10 100 DAO S16E50
1999/08/09 19 130 ESO S16E35
1999/08/10 27 230 EAC S16E21
1999/08/11 43 290 FAI S16E07
1999/08/12 39 290 FAI S15W06
1999/08/13 37 180 EAI S16W19
1999/08/14 25 170 FAI S16W33
1999/08/15 15 130 FSI S16W46
1999/08/16 9 100 FSO S15W59
1999/08/17 3 40 CSO S15W75
1999/08/18 1 40 HRX S16W90
BC
117

The top 10 solar flares from sunspot region 8662

Start Maximum End
1C7.071999/08/1723:3323:4523:57
2C6.611999/08/1016:1816:2416:29
3C6.041999/08/1315:4815:5916:05
4C4.671999/08/1319:2719:3319:51
5C4.341999/08/1307:4507:5207:57
6C2.971999/08/1407:3207:4007:45
7C2.291999/08/1022:0322:0822:11
8C2.291999/08/1415:1915:2715:37
9C2.141999/08/0803:2603:2703:32
10C2.011999/08/1009:5109:5910:07

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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
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Last 30 days131.3 -1.2

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