Viewing archive of Monday, 21 September 2015

Sunspot numberNew regionsBackground fluxMaximum fluxC
68 -60 -1B2.9C8.884

Solar flares

RegionStartMaximumEnd
2420C2.8 00:1000:2100:29
2420C4.2 01:5702:0402:08
2420B6.3 03:2903:3303:37
2420C1.5 03:5404:0004:05
2420C8.8 05:1105:1805:22
2415B5.3 14:4714:5014:54
2420B5.4 18:5218:5318:54

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/09/28Kp5 (G1)
Number of spotless days in 2019:214
Current stretch spotless days:16

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