Viewing archive of Friday, 7 December 2001

Sunspot numberNew regionsBackground fluxMaximum fluxC
200 -261C1.4C8.34

Solar flares

RegionStartMaximumEnd
-C2.5 04:3504:3904:42
9717C3.9 05:1005:2806:14
9727C8.2 08:0408:1708:23
-C4.1 16:4217:0517:33

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/07/10Kp5 (G1)
Number of spotless days in 2019:130
Current stretch spotless days:12

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