Viewing archive of Saturday, 21 August 1999

Sunspot numberNew regionsBackground fluxCM
79 140 -1C1.052

Solar flares

RegionStartMaximumEnd
-C3.7 01:5202:0102:21
8674C5.2 11:0011:0611:11
-C2.2 15:0515:1315:25
8674M3.7 16:3016:3416:37
-C2.0 17:2417:4519:12
-M5.9 22:1022:1422:16
-C2.4 23:1623:2323:43

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/01/05Kp5 (G1)
Number of spotless days in 2019:8
Current stretch spotless days:9

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