Sunspot region AR11873

Number of
sunspots
Size Class Magn. Class Spot Location
2013/10/17 4 30 CRO N11E60
2013/10/18 10 110 CSO N11E48
2013/10/19 9 40 CSO N12E34
2013/10/20 6 20 CRO N12E23
2013/10/21 12 50 DAO N12E09
2013/10/22 9 40 DAO N12W05
2013/10/23 4 10 AXX N12W17
2013/10/24 9 10 AXX N11W33
2013/10/29 1 10 HRX N13W0*
C
4

The top 4 solar flares from sunspot region 11873

Start Maximum End
1C8.232013/10/2717:2417:2917:34
2C4.462013/10/2622:2922:3522:40
3C2.942013/10/2615:4515:4915:53
4C2.382013/10/2018:0918:4819:07

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Last X-flare2024/12/08X2.2
Last M-flare2024/12/23M1.0
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024106.6 -45.9
Last 30 days116.1 -41.8

This day in history*

Solar flares
12015M6.75
21998M3.34
32013M2.36
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52001M1.69
DstG
12002-67
22000-62G2
31989-60
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*since 1994

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