Viewing archive of Tuesday, 20 August 2013

Sunspot numberNew regionsBackground fluxMaximum fluxC
115 -460 -1B4.8C1.86383

Solar flares

RegionStartMaximumEnd
1818C1.8 01:2501:2901:32
1817C1.3 04:5406:0806:23
1818C1.6 09:5710:0010:02
-B9.4 20:4420:4820:51

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/09/28Kp5 (G1)
Number of spotless days in 2019:216
Current stretch spotless days:18

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