Viewing archive of Wednesday, 17 April 2013

Sunspot numberNew regionsBackground fluxMaximum fluxC
89 -80B2.8C1.383

Solar flares

RegionStartMaximumEnd
-B7.2 02:5703:0103:11
1719C1.3 04:3904:4304:47
1719B7.7 08:3708:4708:56
1719C1.3 19:5020:1120:29
1719C1.2 20:4920:5220:57
-B4.8 22:0322:0722:10

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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 2019:268
Current stretch spotless days:41

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