Viewing archive of Saturday, 7 October 2017

Sunspot numberNew regionsBackground fluxMaximum flux
11 -110A7.5B4.97

Solar flares

RegionStartMaximumEnd
2683B4.6 23:2600:2801:12
-B4.9 02:1902:2302:28
2683B1.2 05:2205:2505:27
2683B1.4 05:3005:3505:38
2683B1.6 05:5906:0206:06

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/08/05Kp5 (G1)
Number of spotless days in 2019:158
Current stretch spotless days:13

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*since 1994

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