Thomas de Groot <tho### [at] degroot org> wrote:
> Question:
>
> For the visible Sun, you give: #local SunRadius = vlength(sp)/214.8;
>
> I seem to remember that Cousin Ricky evaluated the apparent size of the
> Sun as to be twice as much, i.e.: #local SunRadius = vlength(sp)*2/214.8;
He is correct. The formula you attribute to me is for the /diameter/ of the
Sun, not the radius. (References to celestial objects tend to give diameters
instead of radii. Another possibility is that the original conversation was
about area_lights.)
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