Viewing archive of Friday, 4 January 2002

Sunspot numberNew regionsBackground fluxMaximum fluxCM
248 191C1.9M1.151

Solar flares

RegionStartMaximumEnd
-C3.6 08:1708:2308:30
-C3.7 09:2409:5210:35
-M1 17:4317:4917:54
9773C5.6 18:2518:2918:34
9773C8.7 19:5120:2321:04
9767C7.2 22:5322:5622:58

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2020/02/19Kp5 (G1)
Number of spotless days in 2020:40
Current stretch spotless days:25

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