Viewing archive of Saturday, 13 April 2013

Sunspot numberNew regionsBackground fluxMaximum fluxC
148 202 2B3.7C1.92614

Solar flares

RegionStartMaximumEnd
1719C1.5 01:2401:4201:58
1718C1.9 03:2903:3403:36
1724C1.5 09:2109:2809:34
1718C1.4 19:4619:5320:01
1724B9.4 20:4821:0121:08
-B6.6 21:5822:0222:07

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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 2019:213
Current stretch spotless days:15

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