Sunspot region AR11721

Number of
sunspots
Size Class Magn. Class Spot Location
2013/04/10 4 10 BXO S18E35
2013/04/11 10 80 DAO S19E20
2013/04/12 17 220 DAI S18E06
2013/04/13 18 190 DSI S18W07
2013/04/14 13 180 DSO S19W21
2013/04/15 12 140 ESI S18W33
2013/04/16 6 110 DAO S18W47
2013/04/17 5 120 CSO S17W61
2013/04/18 2 100 CSO S17W75
2013/04/19 1 60 HSX S18W86
2013/04/20 1 60 HSX S18W0*
C
2

The top 2 solar flares from sunspot region 11721

Start Maximum End
1C5.972013/04/1110:0910:1310:15
2C1.752013/04/1012:5412:5813:04

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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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