Sunspot region AR12166

Number of
sunspots
Size Class Magn. Class Spot Location
2014/09/13 2 30 AXX N12E66
2014/09/14 5 30 CRO N13E61
2014/09/15 11 60 DAO N13E44
2014/09/16 7 40 CAO N12E28
2014/09/17 7 30 CAO N12E13
2014/09/18 7 30 CAO N12W00
2014/09/19 9 30 CAO N13W14
2014/09/20 4 20 DSO N11W27
C
4

The top 4 solar flares from sunspot region 12166

Start Maximum End
1C7.432014/09/2111:3111:5312:32
2C3.372014/09/1520:4420:5120:59
3C2.382014/09/1304:2904:4704:58
4C1.762014/09/1900:0200:0700:13

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Last X-flare2024/12/08X2.2
Last M-flare2024/12/23M8.9
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
12024M8.9
22015M6.75
31998M3.34
42013M2.36
52013M1.97
DstG
12002-67
22000-62G2
31989-60
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*since 1994

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