Viewing archive of Sunday, 21 November 1999

Sunspot numberNew regionsBackground fluxMaximum fluxCM
200 -252 1C2.8M3.4523

Solar flares

RegionStartMaximumEnd
8765M1.3 00:0700:1400:18
8765C4.2 08:0108:0508:10
8771C6.0 08:2208:2908:39
8765M2.2 10:0310:1710:24
8765M3.4 18:1018:2018:25

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/08/05Kp5 (G1)
Number of spotless days in 2019:159
Current stretch spotless days:15

This day in history*

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12002X1.0
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31999M3.7
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3201318
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*since 1994

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