[Elecraft] Solar Cycles

[lmarion]

When stars reach middle age, half of ~10 billion for our sun,they phase into 
a state where there are no sunspots for the rest of their hydrogen burning 
life.
So the sunspots cycle ( which is ~22 years by the way,  it is based on 
sunspot polarization, ~11 years is half of the cycle. ), will disappear 
completely.  I did see
a sunspot group when I looked at the sun in Hydrogen alpha,  so not today.
Amateur astronomy and radio are the coolest hobbies,  with fishing a close 
third.



Leroy  AB7CE, amateur radio operator and astronomer and Montana fly 
fisherman



-----Original Message----- 
From: Dauer, Edward
Sent: Thursday, January 26, 2017 2:32 PM
To: elecraft at mailman.qth.net
Subject: [Elecraft] Solar Cycles

For those who have been concerned whether the solar cycle would reverse this 
time, take heart.  An article in The Economist for Jan. 21  2017 (at page 
67) reports that a study of fossilized vegetation from the Permian period 
about 290 million years ago evidences a solar cycle back then of 10.6 years, 
easily  within the statistical variability around today’s 11.2.

Take that, Annie and Walter Maunder.

Ted, KN1CBR

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