Viewing archive of Sunday, 4 May 1997

Sunspot numberNew regionsBackground fluxMaximum flux
11 -20 -1A1.8B1.56

Solar flares

RegionStartMaximumEnd
-B1.2 07:0107:0607:13
-B1.2 12:5112:5513:01
-B1.7 13:1213:1913:27

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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 2019:246
Current stretch spotless days:19

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