In article <45c9a603@news.povray.org>,
 Nicolas George <nicolas$george@salle-s.org> wrote:

> Well, all this is theory, and you probably can not do it with sunpos.inc.
> The first step can probably be done with ephemerides programs. As for the
> second, I have no idea.

all you say it's right and i think that povary can compute accurancy 
position of sun.

i begun to write a "small" macro for that and results are :


ephemeride values are :


all for the 1978, november 12, 0h ET.

as you can see, accurancy not bad. probably, increase precision with 
venus, jupiter moon and some others perturbations can be done.

 
-- 
klp

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