Viewing archive of Monday, 20 December 2004

Sunspot numberNew regionsBackground fluxMaximum flux
30 10B1.3B3.93

Solar flares

RegionStartMaximumEnd
0713B1.8 06:3006:3406:37
-B3.9 08:5010:0610:34
0713B1.9 20:4820:5421:03
0713B3.9 21:1522:1122:27
0713B3.9 22:4922:5422:57

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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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