Mark wrote,

>The 'con' of my model is that I have not yet convinced myself.
>There may be a blunder, or even if my model is correct it may
>have no connection to the equinoctial sun.

To me, it is not a matter of convincing oneself. It is a matter of
framing your hypothesis in way that it is falsifiabile, It has to be
capability of being proven false. If not, it cannot be verified by
any possible accumulation of observational evidence.

Yours,

PAul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)