Re: Why 11 year sunspot cycle?

From: rt@iprolink.co.nz (Ray Tomes)
Date: Sun, 06 Aug 1995 04:23:43 GMT

ug_prn@zuaxp0.star.ucl.ac.uk (Peter R Newman) wrote:

>>Is there any tie-up with the orbit periods of the planets?  I did a search
>>for NASA stuff on sunspots, and found a reference to a report on this, but
>>the report itself doesn't seem to be online.

>>Jeremy Fox

>It has nothing to do with the planets at any scale that matters.  It has 
>to do with the way the differential rotation of the Sun wraps up the 
>magnetic field lines.

Existing theory cannot fully explain the workings of the sunspot
cycle as you seem to suggest.

Although there is no agreement of how the planets affect the sun it
seems from the periods present that the planets certainly do.
Some of the proposed solutions:

1. That tidal effects from the planets have an effect on the sun
   See Wood in I think Nature 1972.

2. That the motion of the sun about the center of mass of the solar
   system somehow has an effect.  Proposed by Jose.

3. That there is a relativistic effect on photons in the sun (which
   are trapped for long periods) and this affects convection,
   proposed by yours truely.  Information available at web site.

The three main components in the 11 yr (yes really 22 year) cycle
are 11.07, 9.9 and 11.8 years.  These match exactly the frequencies
J+N, (J-S)/2 and J where J, S and N are the orbital frequencies of
the planets.  Other planetary periods are also present.

Ray Tomes 
http://www.vive.com/connect/universe/rt-home.htm