Historical solar cycles
The chart on this page shows the sunspot numbers since 1749. That's when the extensive recording of solar sunspot activity began. You can zoom in on this plot by selecting a time period that you wish to view. Every dataset can be toggled on or off by clicking on the corresponding description under each graph and it can be exported as a JPG, PNG, PDF or SVG file.
Current data suggest that it is not possible to see aurora now at middle latitudes
The strength of the interplanetary magnetic field is moderate (10.39nT), the direction is North (4.71nT).
Sunday, 28 May 2017 - 14:50 UTC
Wednesday, 24 May 2017 - 13:30 UTC
Thursday, 18 May 2017 - 13:22 UTC
Today's space weather
|Predicted Kp max
|M-class solar flare
|X-class solar flare
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Space weather facts
|Last geomagnetic storm:||2017/05/28||Kp7 (G3)|
|Number of spotless days in 2017:||37|
|Last spotless day:||2017/05/15|
This day in history*