Solar physicist Leif Svalgaard of the W.W. Hansen Experimental Physics Laboratory at Stanford University has predicted a maximum sunspot number of 128 ±10, slightly better than Solar Cycle 24.
“The overall average is 132 ±47 (median 124),” he said. “None of these numbers are substantially different, so one could perhaps just go with the ‘wisdom of the crowd.’ All predictions that we consider hav…