Mod to choose which star to track for my solar panels

[Sorabh]

I recall a mod that allowed us to choose which star to track for our solar panels. But I can't remember what it was called. 

Here's my test probe at Telos, basking in the light of Ollum, a sub star. But as you can see,  Sun exposure is NaN...

Help me out, please?

[Galileo]

Kopernicus 

[Snark]

Moving to Add-on Discussions.

[OhioBob]

And if you have multiple stars to choose from, you probably already have Kopernicus installed.

[Sorabh]

Thanks! Reinstalling Koprnicus solved the issue!