Core Essays

01 September 2008

Very Little Sunspot Activity Recently

There has been very little sunspot activity since the most recent solar cycle 24 began in January. The last sunspot activity was on 20 July. Before that, there was a long stretch with no sunspots also. Measurements of solar irradiance over the last three months have also been very low.

The Little Ice Age had two parts. The second part corresponded to an extensive time of very few observances of sunspots, called the Maunder Minimum.

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