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IPFS News Link • Solar Flares

Solar activity crashes – the Sun looks like a cueball

• wattsupwiththat.com by Anthony Watts

Via Robert Zimmerman, Behind The Black

On Sunday NOAA posted its monthly update of the solar cycle, covering sunspot activity for March 2018. Below is my annotated version of that graph.

March 2018 was the least active month for sunspots since the middle of 2009, almost nine years ago. In fact, activity in the past few months has been so low it matches the low activity seen in late 2007 and early 2008, ten years ago when the last solar minimum began and indicated by the yellow line that I have added to the graph below.


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