Viewing archive of Sunday, 17 April 2016

Sunspot numberNew regionsBackground fluxMaximum fluxC
35 -160 -1B2.8C2.471

Solar flares

RegionStartMaximumEnd
2529B9.6 00:5300:5701:00
2529B7.9 03:5704:0104:05
2529B8.4 16:4817:0217:15
2529C2.4 17:1717:3017:47
-B4.8 21:5622:0022:07

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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 2019:215
Current stretch spotless days:18

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