Viewing archive of Friday, 3 December 1999

Sunspot numberNew regionsBackground fluxMaximum fluxC
107 -490 -4B9.6C6.384

Solar flares

RegionStartMaximumEnd
-C2.1 01:1601:2001:23
-C1.5 13:3013:3413:38
8782C1.4 15:2815:3215:34
-C6.3 19:4819:5319:55

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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 2019:260
Current stretch spotless days:33

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*since 1994

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