Viewing archive of Friday, 20 May 2005

Sunspot numberNew regionsBackground fluxMaximum flux
22 -120 -1A8.4B9.53

Solar flares

RegionStartMaximumEnd
0763B2.4 04:2404:3004:34
-B2.7 05:0305:1505:23
0765B1.8 10:5911:0311:07
0765B4.5 18:1618:2918:52
0759B9.5 21:3521:5122:27

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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 2019:218
Current stretch spotless days:20

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