The K7RA Solar Update

On Wednesday, December 19 Spaceweather.com displayed this headline: “Solar minimum conditions are in effect”, followed by “The Sun has been without sunspots for 209 days in 2018–that is, 59% of the time. To find a similar stretch of blank suns, you have to go back to 2009 when the Sun was experiencing the deepest solar minimum in a century.”

Looking at my own records, I show the average daily sunspot number for all of 2009 was 5.05, and average daily solar flux was 70.6.

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