Viewing archive of Sunday, 23 April 2000

Sunspot numberNew regionsBackground fluxMaximum fluxC
252 262 1B7.4C4.744

Solar flares

RegionStartMaximumEnd
-C4.7 01:0801:2501:36
-C1.2 05:0405:1505:25
8967C2.1 05:5806:2406:33
8970C2.7 13:4413:4913:53

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Space weather facts

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 2020:30
Current stretch spotless days:16

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*since 1994

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