[Elecraft] Sunspots - More patience required . . .

[lmarion]

Those of us who study solar physics actually view the 11 years as half of 
the 22 years it takes for the magnetic cycle to complete.
A peak or minimum is not a complete cycle.
73
Leroy AB7CE

-----Original Message----- 
From: Dauer, Edward
Sent: Saturday, July 21, 2018 4:47 PM
To: elecraft at mailman.qth.net
Subject: [Elecraft] Sunspots - More patience required . . .

This month’s Scientific American has an interesting one-page article on 
sunspots.  The 11-year cycle (the Schwabe cycle) is the one we tend to focus 
on, but there are 88 year cycles (the Gleissberg), occasional 200 year peaks 
(Suess-DeVries), and a 2,400 year (Hallstatt) cycle as well.  The longer 
cycles look like modulation envelopes with the shorter cycles constrained 
within them.