Are you 100% certain stars emit light? I’m not.
Introduction
The winter nights are long in Norway, and the authors of this paper have often remarked upon the phenomenon that the darkness seems to “press in” upon one. This effect has prompted an elaborate and thorough series of measurements performed in the authors’ respective independent laboratories and utilizing the most advanced electronic and computational techniques. The results conclusively show that the customary theory of light and electromagnetic phenomena have been consistently misinterpreted by theoreticians and experimentalists alike. In short, the concept of the photon has been found to be a misleading, if not actually invalid, method of describing electromagnetic phenomena. In place of the photon considered as a quantized unit of light energy, it has been conclusively demonstrated by our experiments that the correct fundamental unit is a quantized unit of dark, which we have called the Darkon. The symbol chosen for the darkon is the runic symbol F.
http://lindberglce.com/tech/darkons.htm
You can go by Darkon (whatever that is) and measure the speed of it but I’ll stick with light being emitted by stars (like our sun).