Viewing archive of Sunday, 20 September 1998

Sunspot numberNew regionsBackground fluxMaximum fluxCM
130 -30 -3B3.1M1.911

Solar flares

RegionStartMaximumEnd
-B6 01:0401:1001:15
-M1.8 02:3302:5103:28
8336C1.5 09:4409:4909:53

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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 2019:268
Current stretch spotless days:42

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