Sunspot region AR12872

Number of
sunspots
Size Class Magn. Class Spot Location
2021/09/20 7 30 CRO N19E42
2021/09/21 4 10 BXO N18E25
2021/09/22 9 70 CAI N17E14
2021/09/23 15 120 CAI N17E01
2021/09/24 10 80 CAO N17W12
2021/09/25 9 60 CRO N17W26
2021/09/26 7 40 CRO N16W38
2021/09/27 4 10 BXO N16W53
B
5

The top 5 solar flares from sunspot region 12872

Start Maximum End
1B4.22021/09/2123:5123:5523:59
2B3.72021/09/2615:3815:4716:10
3B3.42021/09/2211:1711:2511:30
4B1.92021/09/2423:3423:3823:42
5B1.82021/09/2415:5716:0516:09

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Space weather facts

Last X-flare2024/11/06X2.39
Last M-flare2024/11/13M1.7
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024166 -0.4
Last 30 days163.2 +18.4

This day in history*

Solar flares
11999X1.15
21999M8.06
32005M5.58
41999M4.11
52005M3.72
DstG
11960-167G3
21998-109G2
32012-108G2
41989-105
51979-90G1
*since 1994

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