How do you create a second sun?

I was wondering what the first sun’s ‘scripting’ is based on. How does the circle mask and colour ‘fill’ interaction know where to draw the already present sun? It’s a product of what’s called ‘camera vector’ (I believe) and a vector describing where it should be in the sky at that point in time. Can I shift it laterally along that vector? Like can I shift it over by a few pixels? If so, then I know where to place my second sun and it only becomes a matter of how.

Thanks,
Shrooblord