Region 12171

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
1C3.32014/09/1917:2718:3218:58
2C3.22014/09/2519:1220:3221:47
3C1.12014/09/2012:4312:5413:06

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/09/28Kp5 (G1)
Number of spotless days in 2019:211
Current stretch spotless days:13

This day in history*

Solar flares
12013M1.8
22013M1.3
32015M1.1
42002M1.0
52013C9.5
ApG
1200344G2
2199931G1
3201725G1
4200218
5201317
*since 1994

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