Viewing archive of Tuesday, 16 April 2013

Sunspot numberNew regionsBackground fluxMaximum fluxC
97 -20B3.1C3.52755

Solar flares

RegionStartMaximumEnd
1723C1.5 04:2604:3004:35
1723C1.3 07:3007:3707:47
1719C1.7 16:2116:4616:55
1719C1.6 18:1618:2418:27
-B6.4 19:3519:3819:41
1719C3.5 21:1721:3221:54

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/07/10Kp5 (G1)
Number of spotless days in 2019:131
Current stretch spotless days:13

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