Viewing archive of Sunday, 21 September 2003

Sunspot numberNew regionsBackground fluxMaximum fluxC
64 -80 -1B4.2C1.814

Solar flares

RegionStartMaximumEnd
0464C1.4 00:0300:0800:13
0464C1.1 00:2500:2800:31
0464C1.8 02:2602:3002:32
-C1.0 04:0404:0704:12
-B8.5 20:5420:5821:02

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/09/02Kp5 (G1)
Number of spotless days in 2019:187
Current stretch spotless days:17

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