Sunspot region AR12171

Number of
sunspots
Size Class Magn. Class Spot Location
2014/09/20 2 80 DSO S09E65
2014/09/21 7 160 DAO S10E53
2014/09/22 8 160 EAI S10E39
2014/09/23 11 150 EAO S10E25
2014/09/24 7 150 EAC S10E11
2014/09/25 6 80 ESO S11W01
2014/09/26 11 100 EAO S12W15
2014/09/27 10 130 EAO S11W28
2014/09/28 10 130 EAO S11W28
2014/09/29 12 100 CAO S11W54
2014/09/30 5 30 CSO S10W66
2014/10/01 1 40 HSX S06W83
2014/10/02 1 40 HSX S06W98
C
3

The top 3 solar flares from sunspot region 12171

Start Maximum End
1C4.792014/09/1917:2718:3218:58
2C4.552014/09/2519:1220:3221:47
3C1.522014/09/2012:4312:5413:06

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Last X-flare2024/05/15X2.9
Last M-flare2024/05/19M1.6
Last geomagnetic storm2024/05/17Kp6 (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2024136.5 +31.6
May 2024157.7 +21.2
Last 30 days169.2 +51.4

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*since 1994

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