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;

I don't know who is right or wrong but personally I prefer the larger 
size :-) Somehow, it looks more like the natural aspect of the Sun, but 
that may very well not be at all objective.

Thomas

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