Viewing archive of Tuesday, 12 September 2017

Sunspot numberNew regionsBackground fluxMaximum fluxC
11 -120A8.3C3.062

Solar flares

RegionStartMaximumEnd
2680C3 07:2207:2907:34
2677B3.4 13:5714:0114:08
2680B3.5 15:2815:3515:39
2680B1.7 15:5415:5916:06
2680C1.6 19:0319:2019:28

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/10/26Kp5 (G1)
Number of spotless days in 2020:16
Last spotless day:2020/01/23

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*since 1994

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