Viewing archive of Wednesday, 20 May 2015

Sunspot numberNew regionsBackground fluxMaximum fluxC
61 -230 -1B2.7C1.642

Solar flares

RegionStartMaximumEnd
2349B7.7 02:4902:5703:04
2351C1.3 03:4804:0404:27
2349C1.6 08:0508:1208:19
2351B5.8 15:0215:0715:12
-B7.1 16:5017:0217:22
2346B6.2 18:3118:3618:41

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/10/26Kp5 (G1)
Number of spotless days in 2019:240
Current stretch spotless days:13

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*since 1994

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