Viewing archive of Saturday, 7 December 2013

Sunspot numberNew regionsBackground fluxMaximum fluxCM
104 -11 1B9.5M1.2731

Solar flares

RegionStartMaximumEnd
1916C3.3 04:3004:3604:42
1916C1.7 05:2205:2605:30
1909M1.2 07:1707:2907:49
1917C2.1 17:3417:4117:52

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2020/02/19Kp5 (G1)
Number of spotless days in 2020:72
Current stretch spotless days:22

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*since 1994

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