Viewing archive of Saturday, 7 April 2001

Sunspot numberNew regionsBackground fluxMaximum fluxC
153 172 2C1.5C2.315

Solar flares

RegionStartMaximumEnd
9417C2.0 09:1509:3509:48
-C2.3 10:3410:3910:49
-C1.2 11:0911:2411:31
9415C1.2 13:5113:5313:58
-C1.2 18:5419:0419:22

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/06/08Kp5 (G1)
Number of spotless days in 2019:106
Current stretch spotless days:33

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*since 1994

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