Viewing archive of Friday, 21 January 2000

Sunspot numberNew regionsBackground fluxCM
144 252 1C1.351

Solar flares

RegionStartMaximumEnd
-C5.8 01:3701:4101:45
-C6.7 05:0205:1005:15
-M1.4 06:3406:4806:58
-C3.5 08:1108:4508:54
8837C5.1 11:3311:4211:52
-C2.8 18:2018:2518:32

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/01/31Kp5 (G1)
Number of spotless days in 2019:32
Current stretch spotless days:18

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