Here's why:
* Star Color and Temperature: The color of a star is directly related to its surface temperature.
* Wien's Displacement Law: This law states that the peak wavelength of radiation emitted by a blackbody (like a star) is inversely proportional to its temperature.
* Yellow Stars: Stars with surface temperatures in the 5000-6000K range emit most of their light in the yellow part of the visible spectrum.
Our own sun is a great example! It has a surface temperature of around 5,500K and appears yellow to us.