Realistic Star Brightness - Unity3D

[Anonymous No.9230020]

So Im working on setting up my solar system generator for the galaxy map that I have. Part of the process involves setting the "range" and "intensity" of a point light depending on the star of a solar system generated by the star generator.

I am using this chart as a reference for the star generator... http://www.enchantedlearning.com/subjects/astronomy/stars/startypes.shtml

What I need is a way to realistically represent the brightness of a star at d (distance) from star. At point light in Unity has 2 key properties. Range, which represents how far the light will travel before it doesnt affect geometry anymore. And Intensity, which represents how bright bright the light at the origin is. I believe the Inverse Square Law is used to calculate how intense the light is at x range from the light.

My current idea in solving this problem involves using the luminosity of the star (value based on chart) and then normalizing and scaling it between 0-8 for the intensity. But the problem comes for setting a realistic range.

What would be some possible ways to establish a good baseline for setting the light range?

[Anonymous No.9230023]

Also, a point light's range is limited to a maxium of 8 and a minimum of 0.