Viewing archive of Thursday, 21 September 2000

Sunspot numberNew regionsBackground fluxMaximum fluxC
198 271 1C1.1C4.116

Solar flares

RegionStartMaximumEnd
-C2.1 01:2201:3401:40
9169C3 01:5002:0502:10
-C2.9 03:4503:5304:07
-C4.1 09:0809:2809:57
-C2.5 13:4414:0314:16
-C2.9 15:5716:1316:28

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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)
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Current stretch spotless days:15

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