Question about solar brightness curve

[Iso-Polaris]

%Light
            {
                %sunAU = 133599840256
                !brightnessCurve {}
                brightnessCurve
                {
                    key = 0.1 0.1 0 0
                    key = 5.084181 10.9971 -0.001802 -0.001802
                    key = 76.56295 1.82142 0.000171 0.000171
                }
            }

These config file seem to decrease the STOCK sunflare with distance.

Can someone tell me what does each number mean? I REAAAAAAAALY want to adjust the sunlight in RSS

[Streetwind]

You're not going to find answers to such a deep detail modding question in General Discussion. Try the add-on subforum, or better yet the Kopernicus mod thread itself

[Chaos_Klaus]

Each key represents a point along a curve. The first two values represent x and y values. The following two values are optional and represent the slope of the curve before and after that point.

Together, all keys represent a so called float curve.

[Iso-Polaris]

On 2017/2/28 at 6:10 PM, Chaos_Klaus said:

Each key represents a point along a curve. The first two values represent x and y values. The following two values are optional and represent the slope of the curve before and after that point.

Together, all keys represent a so called float curve.

So if want the sun brighter in Pluto orbit, which number should I change for that