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Sunspot region AR13831

Number of
sunspots		 Size Class Magn. Class Spot Location
2024/09/19 10 100 CRO N12E05
2024/09/20 7 80 DAO N12W09
2024/09/21 7 80 DAO N12W23
2024/09/22 7 80 DAO N12W37
2024/09/23 3 80 CAO N14W49
2024/09/24 3 60 CAO N15W62
2024/09/25 4 30 CRO N15W76
2024/09/26 2 20 CRO N15W90
2024/09/27 2 20 CRO N15W0*
C
4

The top 4 solar flares from sunspot region 13831

Start Maximum End
1C4.42024/09/2120:3720:4620:50
2C3.92024/09/2014:4514:5715:04
3C2.42024/09/1921:4621:5221:57
4C1.62024/09/2113:3513:4113:46
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Filaments and prominences 517AR 13901 108Incoming & Unnumbered Active Regions 1246Sunspot Latitudes at or near Solar Maximum 76The Rotations of AR 13780 and AR 13902 1
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Last X-flare2024/11/06X2.39
Last M-flare2024/11/20M1.1
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024142.7 -23.8
Last 30 days155.2 +4.4

This day in history*

Solar flares
12012M5.08
21999M4.93
31999M3.27
42000M2.33
52012M2.11
DstG
12003-309G3
21991-135G3
32002-128G3
41960-111G2
51970-110G2
*since 1994

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